Deleted Item not actually getting deleted or **delay** deleted thus getting refetched (EWS Managed API)
I am polling Exchange Server to fetch all the mails left in the Inbox and then fetching them, processing them and finally moving them to the deleted folder. My procedure takes following form of EWS Managed API calls:
1 itemResults = service.FindItems(WellKnownFolderName.Inbox, itemView);
2 //some code...
3 service.LoadPropertiesForItems(itemResults.Items, itItemPropSet);
4 //some code...
5 foreach(Item item in itemResults)
6 {
7 //process item
8 item.Delete(DeleteMode.MoveToDeletedItems);
9 }
To test this code I flooded the inbox with 5000 mails, 5 threads flooding 1000 mails each at the interval of 4ms.
After test run, I realized some mails are getting processed multiple times.
When I read the soap traces logged using TraceListener, I realized that when there are more than 100 mails in the inbox, there are more SOAP packets were dispatched in burst of 100s.
Logically below set of SOAP Packets (let us call it "Set 1") should occur only once:
<m:FindItem>...</m:FindItem> //generated by line 1
<m:FindItemResponse>...</m:FindItemResponse> //generated by line 1
<m:GetItem>...</m:GetItem> //generated by line 3
<m:GetItemResponse>...</m:GetItemResponse> //generated by line 3
followed x number of Delete SOAP packets for x number of mails in the Inbox
<m:DeleteItem>...</m:DeleteItem> //generated by line 8
<m:DeleteItemRepsonse>...</m:DeleteItemRepsonse> //generated by line 8
However if there are say 325 mails in the inbox, then there first occurs 4 occurences of Set 1 followed by Delete SOAP packest as follows:
//1st occurence
<m:FindItem>100 items</m:FindItem>
<m:FindItemResponse>100 items</m:FindItemResponse>
<m:GetItem>100 items</m:GetItem>
<m:GetItemResponse>35 items</m:GetItemResponse>
//2nd occurence
<m:FindItem>100 items</m:FindItem>
<m:FindItemResponse>100 items</m:FindItemResponse>
<m:GetItem>100 items</m:GetItem>
<m:GetItemResponse>35 items</m:GetItemResponse>
//3rd occurence
<m:FindItem>100 items</m:FindItem>
<m:FindItemResponse>100 items</m:FindItemResponse>
<m:GetItem>100 items</m:GetItem>
<m:GetItemResponse>100 items</m:GetItemResponse>
//4th occurence
<m:FindItem>35 items</m:FindItem>
<m:FindItemResponse>35 items</m:FindItemResponse>
<m:GetItem>35 items</m:GetItem>
<m:GetItemResponse>35 items</m:GetItemResponse> //****followed by 335 occurences of the Delete SOAP packets****<m:DeleteItem>...</m:DeleteItem>
<m:DeleteItemRepsonse>...</m:DeleteItemRepsonse>
//334 more of above
So there are 100 + 100 + 100 + 35 = 335 items actually getting handled, which is 10 more than what are actually present in the inbox.
Also notice that Delete SOAP packets are queued till end. They are not dispatched in burst.
First thing I realize dispatching SOAP packets in burst of 100s is EWS Managed API behavior. I guess there must be traffic reason behind it and there must be some configuration setting to tweak it.
Q1. How can we change this count of 100?
I inferred that there are some overlaps in fetching of mails.
So I copy pasted SOAP Traces for first two of
<m:GetItem>100 items</m:GetItem>
in two different files, and compared them in text comparer. I realised that some mails that are at the end of the first 100s were reappearing at the beginning of 2nd 100:
This is the pattern in many test runs.
Due to this these overlapping mails, these mails are getting processed twice. Also the attempt to second time delete them was throwing exception : The specified object was not found in the store.
So I guess there is time delay in delete mail API call and mails actually getting deleted, between which they are getting refetched.
Q2. How can I handle this to avoid redundant processing of mails and unnecessary exceptions.
I am polling Exchange Server to fetch all the mails left in the Inbox and then fetching them, processing them and finally moving them to the deleted folder. My procedure takes following form of EWS Managed API calls:
1 itemResults = service.FindItems(WellKnownFolderName.Inbox, itemView);
2 //some code...
3 service.LoadPropertiesForItems(itemResults.Items, itItemPropSet);
4 //some code...
5 foreach(Item item in itemResults)
6 {
7 //process item
8 item.Delete(DeleteMode.MoveToDeletedItems);
9 }
To test this code I flooded the inbox with 5000 mails, 5 threads flooding 1000 mails each at the interval of 4ms.
After test run, I realized some mails are getting processed multiple times.
When I read the soap traces logged using TraceListener, I realized that when there are more than 100 mails in the inbox, there are more SOAP packets were dispatched in burst of 100s.
Logically below set of SOAP Packets (let us call it "Set 1") should occur only once:
<m:FindItem>...</m:FindItem> //generated by line 1
<m:FindItemResponse>...</m:FindItemResponse> //generated by line 1
<m:GetItem>...</m:GetItem> //generated by line 3
<m:GetItemResponse>...</m:GetItemResponse> //generated by line 3
followed x number of Delete SOAP packets for x number of mails in the Inbox
<m:DeleteItem>...</m:DeleteItem> //generated by line 8
<m:DeleteItemRepsonse>...</m:DeleteItemRepsonse> //generated by line 8
However if there are say 325 mails in the inbox, then there first occurs 4 occurences of Set 1 followed by Delete SOAP packest as follows:
//1st occurence
<m:FindItem>100 items</m:FindItem>
<m:FindItemResponse>100 items</m:FindItemResponse>
<m:GetItem>100 items</m:GetItem>
<m:GetItemResponse>35 items</m:GetItemResponse>
//2nd occurence
<m:FindItem>100 items</m:FindItem>
<m:FindItemResponse>100 items</m:FindItemResponse>
<m:GetItem>100 items</m:GetItem>
<m:GetItemResponse>35 items</m:GetItemResponse>
//3rd occurence
<m:FindItem>100 items</m:FindItem>
<m:FindItemResponse>100 items</m:FindItemResponse>
<m:GetItem>100 items</m:GetItem>
<m:GetItemResponse>100 items</m:GetItemResponse>
//4th occurence
<m:FindItem>35 items</m:FindItem>
<m:FindItemResponse>35 items</m:FindItemResponse>
<m:GetItem>35 items</m:GetItem>
<m:GetItemResponse>35 items</m:GetItemResponse> //****followed by 335 occurences of the Delete SOAP packets****<m:DeleteItem>...</m:DeleteItem>
<m:DeleteItemRepsonse>...</m:DeleteItemRepsonse>
//334 more of above
So there are 100 + 100 + 100 + 35 = 335 items actually getting handled, which is 10 more than what are actually present in the inbox.
Also notice that Delete SOAP packets are queued till end. They are not dispatched in burst.
First thing I realize dispatching SOAP packets in burst of 100s is EWS Managed API behavior. I guess there must be traffic reason behind it and there must be some configuration setting to tweak it.
Q1. How can we change this count of 100?
I inferred that there are some overlaps in fetching of mails.
So I copy pasted SOAP Traces for first two of
<m:GetItem>100 items</m:GetItem>
in two different files, and compared them in text comparer. I realised that some mails that are at the end of the first 100s were reappearing at the beginning of 2nd 100:
This is the pattern in many test runs.
Due to this these overlapping mails, these mails are getting processed twice. Also the attempt to second time delete them was throwing exception : The specified object was not found in the store.
So I guess there is time delay in delete mail API call and mails actually getting deleted, between which they are getting refetched.
Q2. How can I handle this to avoid redundant processing of mails and unnecessary exceptions.
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public void ShareCalendar(Calendar calendar)
ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2013);
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service.Url = new Uri("https://sampleUrl/ews/exchange.asmx");
try
// Bind to the folder
//Folder folderStoreInfo;
//folderStoreInfo = Folder.Bind(service, calendar.ExchangeId);
//string EwsID = folderStoreInfo.Id.UniqueId;
string EwsID = calendar.FolderExchangeId;
// The value of folderidHex will be what we need to use for the FolderId in the xml file
AutodiscoverService autoDiscover = new AutodiscoverService(ExchangeVersion.Exchange2013);
autoDiscover.Credentials = new NetworkCredential("user1", "password", "domain");
autoDiscover.RedirectionUrlValidationCallback = RedirectionUrlValidationCallback;
Dictionary<string, string> userSettings = GetUserSettings(autoDiscover);
string folderidHex = GetConvertedEWSIDinHex(service, EwsID, "[email protected]");
string domainName = string.Empty;
string mailBoxServer = string.Empty;
string userName = string.Empty;
foreach (var item in userSettings)
switch (item.Key)
case "UserDN":
domainName = item.Value.ToString();
break;
case "InternalMailboxServer":
mailBoxServer = item.Value.ToString();
break;
case "UserDisplayName":
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string entryId = GetIntiatorEntryID(domainName);
string mailboxId = GetInvitationMailboxId(mailBoxServer, domainName);
string sharedFilePath = CreateSharingMessageAttachment(folderidHex, userName, entryId, mailboxId, "[email protected]", "calendar", calendar.FolderName);
// Create a new message
EmailMessage invitationRequest = new EmailMessage(service);
invitationRequest.Subject = "I'd like to share my calendar with you";
invitationRequest.Body = "Sent by Exchange Administrator on behalf of user";
//invitationRequest.Culture = "en-US";
invitationRequest.Sensitivity = Sensitivity.Normal;
// Set a sharing specific property on the message
invitationRequest.ItemClass = "IPM.Sharing"; /* Constant Required Value [MS-ProtocolSpec] */
byte[] byteEntryId = HexStringToByteArray(entryId);
// This is the Guid of the Sharing Provider in Exchange, and it's value does not change
Guid binSharingProviderGuid = new Guid("{AEF00600-0000-0000-C000-000000000046}");
// Even though I don't think setting this property is mandatory,
// it just seemed like the right thing to do and it works so I \
// ain't messin with it!
byte[] byteSharingProviderGuid = binSharingProviderGuid.ToByteArray();
string strPRBODYHTML = "<html dir=\"ltr\">\r\n<head>\r\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=iso-8859-1\">\r\n<meta name=\"GENERATOR\"
content=\"MSHTML 8.00.7601.17514\">\r\n<style id=\"owaParaStyle\">P {\r\n MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px \r\n}\r\n</style>\r\n</head>\r\n<body fPStyle=\"1\" ocsi=\"0\">\r\n<tt>\r\n<pre>SharedByUserDisplayName
(SharedByUserSmtpAddress) has invited you to view his or her Microsoft Exchange Calendar.\r\n\r\nFor instructions on how to view shared folders on Exchange, see the following article:\r\n\r\nhttp://go.microsoft.com/fwlink/?LinkId=57561\r\n\r\n*~*~*~*~*~*~*~*~*~*\r\n\r\n</pre>\r\n</tt>\r\n<div>\r\n<div
style=\"direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;\">this is a test message</div>\r\n</div>\r\n</body>\r\n</html>\r\n";
string strBODY = @"
SharedByUserDisplayName (SharedByUserSmtpAddress) has invited you to view his or
her Microsoft Exchange Calendar.
For instructions on how to view shared folders on Exchange, see the
following article:
http://go.microsoft.com/fwlink/?LinkId=57561
*~*~*~*~*~*~*~*~*~*
test body
// Convert these to hex and binary equivelants to assign to their relevant
// extended properties
string hexPRBODYHTML = ConvertStringToHex(strPRBODYHTML);
byte[] binPRBODYHTML = HexStringToByteArray(hexPRBODYHTML);
Guid PropertySetSharing = Guid.Parse("00062040-0000-0000-C000-000000000046");//constant
Guid PropertySetInternetHeaders = Guid.Parse("00020386-0000-0000-C000-000000000046");//constant
ExtendedPropertyDefinition PidLidSharingProviderGuidProperty = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A01, MapiPropertyType.CLSID);
ExtendedPropertyDefinition ConversationIdProperty = new ExtendedPropertyDefinition(0x3013, MapiPropertyType.Binary);
// Sharing Properties (in order of reference according to protocol examples in: [MS-OXSHARE])
// Additional Property Constraints
// [MS-OXSHARE] 2.2.5.2
ExtendedPropertyDefinition PidTagMessageClass = new ExtendedPropertyDefinition(0x001A, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.5.1
//ExtendedPropertyDefinition PidNameContentClass = new ExtendedPropertyDefinition(DefaultExtendedPropertySet.InternetHeaders, "Content-Class", MapiPropertyType.String);
ExtendedPropertyDefinition PidNameContentClass = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "Content-class", MapiPropertyType.String);
// Common Message Object Properties
// [MS-OXSHARE] 2.2.1
ExtendedPropertyDefinition PidTagNormalizedSubject = new ExtendedPropertyDefinition(0x0E1D, MapiPropertyType.String);
// The PidTagSubjectPrefix is a zero-length string, so I do not set it
// ExtendedPropertyDefinition PidTagSubjectPrefix = new ExtendedPropertyDefinition(0x003D, MapiPropertyType.String);
// Sharing Object Message Properties
// [MS-OXSHARE] 2.2.2.12
ExtendedPropertyDefinition PidLidSharingProviderGuid = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A01, MapiPropertyType.Binary);
// [MS-OXSHARE] 2.2.2.13
ExtendedPropertyDefinition PidNameXSharingProviderGuid = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Provider-GUID", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.14
ExtendedPropertyDefinition PidLidSharingProviderName = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A02, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.15
ExtendedPropertyDefinition PidNameXSharingProviderName = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Provider-Name", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.16
ExtendedPropertyDefinition PidLidSharingProviderUrl = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A03, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.17
ExtendedPropertyDefinition PidNameXSharingProviderUrl = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Provider-URL", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.5
ExtendedPropertyDefinition PidLidSharingFlavor = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A18, MapiPropertyType.Integer);
// [MS-OXSHARE] 2.2.2.6
ExtendedPropertyDefinition PidNameXSharingFlavor = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Flavor", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.1
ExtendedPropertyDefinition PidLidSharingCapabilities = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A17, MapiPropertyType.Integer);
// [MS-OXSHARE] 2.2.2.2
ExtendedPropertyDefinition PidNameXSharingCapabilities = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Capabilities", MapiPropertyType.String);
// Sections 2.3 and 2.4 are also zero-length strings, so I won't set those either
// [MS-OXSHARE] 2.2.2.3
// ExtendedPropertyDefinition PidLidSharingConfigurationUrl = new //ExtendedPropertyDefinition(PropertySetSharing, 0x8A24, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.4
//ExtendedPropertyDefinition PidNameXSharingConfigUrl = new //ExtendedPropertyDefinition(DefaultExtendedPropertySet.InternetHeaders, "X-Sharing-Config-Url", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.10
ExtendedPropertyDefinition PidLidSharingLocalType = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A14, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.11
ExtendedPropertyDefinition PidNameXSharingLocalType = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Local-Type", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.7
ExtendedPropertyDefinition PidLidSharingInitiatorEntryId = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A09, MapiPropertyType.Binary);
// [MS-OXSHARE] 2.2.2.8
ExtendedPropertyDefinition PidLidSharingInitiatorName = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A07, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.9
ExtendedPropertyDefinition PidLidSharingInitiatorSMTP = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A08, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.3.1
ExtendedPropertyDefinition PidLidSharingRemoteName = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A05, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.3.2
ExtendedPropertyDefinition PidNameXSharingRemoteName = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Remote-Name", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.3.5
ExtendedPropertyDefinition PidLidSharingRemoteType = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A1D, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.3.6
ExtendedPropertyDefinition PidNameXSharingRemoteType = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Remote-Type", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.3.7
ExtendedPropertyDefinition PidLidSharingRemoteUid = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A06, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.3.8
ExtendedPropertyDefinition PidNameXSharingRemoteUid = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Remote-Uid", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.3.3
ExtendedPropertyDefinition PidLidSharingRemoteStoreUid = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A48, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.3.4
ExtendedPropertyDefinition PidNameXSharingRemoteStoreUid = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Remote-Store-Uid", MapiPropertyType.String);
//From troubleshooting I noticed I was missing
ExtendedPropertyDefinition PidTagPriority = new ExtendedPropertyDefinition(0x0026, MapiPropertyType.Integer);
ExtendedPropertyDefinition PidTagSensitivity = new ExtendedPropertyDefinition(0x0036, MapiPropertyType.Integer);
ExtendedPropertyDefinition PR_BODY_HTML = new ExtendedPropertyDefinition(0x1013, MapiPropertyType.Binary); //PR_BOD
ExtendedPropertyDefinition PR_BODY = new ExtendedPropertyDefinition(0x1000, MapiPropertyType.String);
ExtendedPropertyDefinition RecipientReassignmentProhibited = new ExtendedPropertyDefinition(0x002b, MapiPropertyType.Boolean);
// Section 2.2.1
invitationRequest.SetExtendedProperty(PidTagNormalizedSubject, "I'd like to share my calendar with you"); /* Constant Required Value [MS-OXSHARE] 2.2.1 */
//invitationRequest.SetExtendedProperty(PidTagSubjectPrefix, String.Empty); /* Constant Required Value [MS-OXSHARE] 2.2.1 */
// Section 2.2.2
invitationRequest.SetExtendedProperty(PidLidSharingCapabilities, 0x40220); /* value for Special Folders */
invitationRequest.SetExtendedProperty(PidNameXSharingCapabilities, "40220"); /* Test representation of SharingCapabilities value */
//invitationRequest.SetExtendedProperty(PidLidSharingConfigurationUrl, String.Empty); /* Zero-Length String [MS-OXSHARE] 2.2.2.3 */
//invitationRequest.SetExtendedProperty(PidNameXSharingConfigUrl, String.Empty); /* Zero-Length String [MS-OXSHARE] 2.2.2.4 */
invitationRequest.SetExtendedProperty(PidLidSharingFlavor, 0x20310); /* Indicates Invitation for a special folder [MS-OXSHARE] 2.2.2.5 */
invitationRequest.SetExtendedProperty(PidNameXSharingFlavor, "20310"); /* Text representation of SharingFlavor value [MS-OXSHARE] 2.2.2.6 */
invitationRequest.SetExtendedProperty(PidLidSharingInitiatorEntryId, byteEntryId); /* Value from the Initiator/EntryId value in the Sharing Message attachment .xml document */
invitationRequest.SetExtendedProperty(PidLidSharingInitiatorSMTP, "[email protected]"); /* Value from Initiator/Smtp Address in the Sharing message attachment .xml document */
invitationRequest.SetExtendedProperty(PidLidSharingInitiatorName, "User1"); /* Value from Initiator/Name Address in the Sharing message attachment .xml document */
invitationRequest.SetExtendedProperty(PidLidSharingLocalType, "IPF.Appointment"); /* MUST be set to PidTagContainerClass of folder to be shared */
invitationRequest.SetExtendedProperty(PidNameXSharingLocalType, "IPF.Appointment"); /* MUST be set to same value as PidLidSharingLocalType */
invitationRequest.SetExtendedProperty(PidLidSharingProviderGuid, byteSharingProviderGuid); /* Constant Required Value [MS-OXSHARE] 2.2.2.12 */
invitationRequest.SetExtendedProperty(PidNameXSharingProviderGuid, "AEF0060000000000C000000000000046"); /* Constant Required Value [MS-OXSHARE] 2.2.2.13 */
invitationRequest.SetExtendedProperty(PidLidSharingProviderName, "Microsoft Exchange"); /* Constant Required Value [MS-OXSHARE] 2.2.2.14 */
invitationRequest.SetExtendedProperty(PidNameXSharingProviderName, "Microsoft Exchange"); /* Constant Required Value [MS-OXSHARE] 2.2.2.15] */
invitationRequest.SetExtendedProperty(PidLidSharingProviderUrl, "http://www.microsoft.com/exchange"); /* Constant Required Value [MS-OXSHARE] 2.2.2.16 */
invitationRequest.SetExtendedProperty(PidNameXSharingProviderUrl, "http://www.microsoft.com/exchange"); /* Constant Required Value [MS-OXSHARE] 2.2.2.17 */
// Section 2.2.3
invitationRequest.SetExtendedProperty(PidLidSharingRemoteName, calendar.FolderName); /* MUST be set to PidTagDisplayName of the folder being shared */
invitationRequest.SetExtendedProperty(PidNameXSharingRemoteName, calendar.FolderName); /* MUST be set to same value as PidLidSharingRemoteName */
invitationRequest.SetExtendedProperty(PidLidSharingRemoteStoreUid, mailboxId); /* Must be set to PidTagStoreEntryId of the folder being shared */
invitationRequest.SetExtendedProperty(PidNameXSharingRemoteStoreUid, mailboxId); /* MUST be set to same value as PidLidSharingRemoteStoreUid */
invitationRequest.SetExtendedProperty(PidLidSharingRemoteType, "IPF.Appointment"); /* Constant Required Value [MS-OXSHARE] 2.2.3.5 */
invitationRequest.SetExtendedProperty(PidNameXSharingRemoteType, "IPF.Appointment"); /* Constant Required Value [MS-OXSHARE] 2.2.3.6 */
invitationRequest.SetExtendedProperty(PidLidSharingRemoteUid, folderidHex); /* MUST be set to PidTagEntryId of folder being shared */
invitationRequest.SetExtendedProperty(PidNameXSharingRemoteUid, folderidHex); /* Must be set to same value as PidLidSharingRemoteUid */
// Section 2.2.5
invitationRequest.SetExtendedProperty(PidNameContentClass, "Sharing"); /* Constant Required Value [MS-ProtocolSpec] */
invitationRequest.SetExtendedProperty(PidTagMessageClass, "IPM.Sharing"); /* Constant Required Value [MS-ProtocolSpec] */
// ********* ADDITIONAL MAPPED PROPERTIES IM FINDING AS I TROUBLESHOOT ********************** //
invitationRequest.SetExtendedProperty(PidTagPriority, 0); /* From troubleshooting I'm just trying to match up values that were missing */
invitationRequest.SetExtendedProperty(PidTagSensitivity, 0); /* From troubleshooting as well */
invitationRequest.SetExtendedProperty(PR_BODY_HTML, binPRBODYHTML); /* From troubleshooting OWA error pointing to serializing HTML failing */
invitationRequest.SetExtendedProperty(PR_BODY, strBODY);
invitationRequest.SetExtendedProperty(RecipientReassignmentProhibited, true); /* Because it seemed like a good idea */
// Add a file attachment by using a stream
// We need to do the following in order to prevent 3 extra bytes from being prepended to the attachment
string sharMetadata = File.ReadAllText(sharedFilePath, Encoding.ASCII);
byte[] fileContents;
UTF8Encoding encoding = new System.Text.UTF8Encoding();
fileContents = encoding.GetBytes(sharMetadata);
//fileContents = File.ReadAllBytes(sharedFilePath);
//// fileContents is a Stream object that represents the content of the file to attach.
invitationRequest.Attachments.AddFileAttachment("sharing_metadata.xml", fileContents);
////invitationRequest.Attachments.AddFileAttachment(sharedFilePath);
//// This is where we set those "special" headers and other pertinent
//// information I noted in Part 1 of this series...
//Attachment thisAttachment = invitationRequest.Attachments[0];
//thisAttachment.ContentType = "application/x-sharing-metadata-xml";
//thisAttachment.Name = "sharing_metadata.xml";
//thisAttachment.IsInline = false;
// Add recipient info and send message
invitationRequest.ToRecipients.Add(new EmailAddress() { Address = "[email protected]" });
invitationRequest.SendAndSaveCopy();
// I always end my methods by returning the EWS
// impersonated user to null to clean up
service.ImpersonatedUserId = null;
catch (Exception ex)
public String GetConvertedEWSIDinHex(ExchangeService esb, String sID, String strSMTPAdd)
// Create a request to convert identifiers.
AlternateId objAltID = new AlternateId();
objAltID.Format = IdFormat.EwsId;
objAltID.Mailbox = strSMTPAdd;
objAltID.UniqueId = sID;
//Convert PR_ENTRYID identifier format to an EWS identifier.
AlternateIdBase objAltIDBase = esb.ConvertId(objAltID, IdFormat.HexEntryId);
AlternateId objAltIDResp = (AlternateId)objAltIDBase;
return objAltIDResp.UniqueId.ToString();
public String GetInvitationMailboxId(string mailBoxServer, string domainName)
ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2013);
service.ImpersonatedUserId = new ImpersonatedUserId(ConnectingIdType.SmtpAddress, "[email protected]");
// Generate The Store Entry Id for the impersonated user
StringBuilder MailboxIDPointer = new StringBuilder();
string fqdn = mailBoxServer;
string legacyDN = domainName;
MailboxIDPointer.Append("00000000"); /* Flags */
MailboxIDPointer.Append("38A1BB1005E5101AA1BB08002B2A56C2"); /* ProviderUID */
MailboxIDPointer.Append("00"); /* Version */
MailboxIDPointer.Append("00"); /* Flag */
MailboxIDPointer.Append("454D534D44422E444C4C00000000"); /* DLLFileName */
MailboxIDPointer.Append("00000000"); /* Wrapped Flags */
MailboxIDPointer.Append("1B55FA20AA6611CD9BC800AA002FC45A"); /* WrappedProvider UID (Mailbox Store Object) */
MailboxIDPointer.Append("0C000000"); /* Wrapped Type (Mailbox Store) */
MailboxIDPointer.Append(ConvertStringToHex(fqdn)); /* ServerShortname (FQDN) */
MailboxIDPointer.Append("00"); /* termination bit */
MailboxIDPointer.Append(ConvertStringToHex(legacyDN)); /* Returns the userDN of the impersonated user */
MailboxIDPointer.Append("00"); /* terminator bit */
service.ImpersonatedUserId = null;
return MailboxIDPointer.ToString();
static bool RedirectionUrlValidationCallback(String redirectionUrl)
bool redirectionValidated = false;
if (redirectionUrl.Equals("https://SampleUrl/autodiscover/autodiscover.xml"))
redirectionValidated = true;
return redirectionValidated;
public String GetIntiatorEntryID(string domainName)
String result = String.Empty;
//// Bind to EWS
//ExchangeService service = ExchangeConnection.ExchangeService();
//service.ImpersonatedUserId =
//new ImpersonatedUserId(ConnectingIdType.SmtpAddress, "[email protected]");
//// Get LegacyDN Using the function above this one
string sharedByLegacyDN = domainName;
// A conversion function from earlier
string legacyDNinHex = ConvertStringToHex(sharedByLegacyDN);
StringBuilder addBookEntryId = new StringBuilder();
addBookEntryId.Append("00000000"); /* Flags */
addBookEntryId.Append("DCA740C8C042101AB4B908002B2FE182"); /* ProviderUID */
addBookEntryId.Append("01000000"); /* Version */
addBookEntryId.Append("00000000"); /* Type - 00 00 00 00 = Local Mail User */
addBookEntryId.Append(legacyDNinHex); /* Returns the userDN of the impersonated user */
addBookEntryId.Append("00"); /* terminator bit */
result = addBookEntryId.ToString();
//service.ImpersonatedUserId = null;
return result;
public string ConvertStringToHex(string input)
// Take our input and break it into an array
char[] arrInput = input.ToCharArray();
String result = String.Empty;
// For each set of characters
foreach (char element in arrInput)
if (String.IsNullOrEmpty(result))
result = String.Format("{0:X2}", Convert.ToUInt16(element)).ToString();
else
result += String.Format("{0:X2}", Convert.ToUInt16(element)).ToString();
return result.ToString();
public string CreateSharingMessageAttachment(string folderid, string userSharing, string userSharingEntryID, string invitationMailboxID, string userSharedTo, string dataType, string calendarName)
XmlDocument sharedMetadataXML = new XmlDocument();
string sharedMetaDataFilePath = string.Empty;
try
// Create a String that contains our new sharing_metadata.xml file
StringBuilder metadataString = new StringBuilder("<?xml version=\"1.0\"?>");
metadataString.Append("<SharingMessage xmlns=\"http://schemas.microsoft.com/sharing/2008\">");
metadataString.Append("<DataType>" + dataType + "</DataType>");
metadataString.Append("<Initiator>");
metadataString.Append("<Name>" + userSharing + "</Name>");
metadataString.Append("<SmtpAddress>" + "[email protected]" + "</SmtpAddress><EntryId>" + userSharingEntryID.Trim());
metadataString.Append("</EntryId>");
metadataString.Append("</Initiator>");
metadataString.Append("<Invitation>");
metadataString.Append("<Title>" + calendarName + "</Title>");
metadataString.Append("<Providers>");
metadataString.Append("<Provider Type=\"ms-exchange-internal\" TargetRecipients=\"" + userSharedTo + "\">");
metadataString.Append("<FolderId xmlns=\"http://schemas.microsoft.com/exchange/sharing/2008\">");
metadataString.Append(folderid);
metadataString.Append("</FolderId>");
metadataString.Append("<MailboxId xmlns=\"http://schemas.microsoft.com/exchange/sharing/2008\">");
metadataString.Append(invitationMailboxID);
metadataString.Append("</MailboxId>");
metadataString.Append("</Provider>");
metadataString.Append("</Providers>");
metadataString.Append("</Invitation>");
metadataString.Append("</SharingMessage>");
sharedMetadataXML.LoadXml(metadataString.ToString());
string tempPath = System.IO.Path.GetTempPath();
sharedMetaDataFilePath = tempPath + "sharing_metadata.xml";
sharedMetadataXML.Save(sharedMetaDataFilePath);
catch (Exception eg)
throw eg;
return sharedMetaDataFilePath;
public Dictionary<string, string> GetUserSettings(AutodiscoverService autodiscoverService)
GetUserSettingsResponse userresponse = autodiscoverService.GetUserSettings(
"[email protected]",
UserSettingName.UserDisplayName,
UserSettingName.InternalMailboxServerDN,
UserSettingName.UserDN
Dictionary<string, string> myUserSettings = new Dictionary<string, string>();
foreach (KeyValuePair<UserSettingName, Object> usersetting in userresponse.Settings)
if (usersetting.Key.ToString() == "InternalMailboxServerDN")
int lastIndexOfEqual = usersetting.Value.ToString().LastIndexOf("=");
string subString = usersetting.Value.ToString().Substring(lastIndexOfEqual + 1);
string value = subString;
myUserSettings.Add("InternalMailboxServer", value.ToString());
if (usersetting.Key.ToString() == "UserDisplayName")
string[] arrResult = usersetting.Value.ToString().Split('.');
myUserSettings.Add("UserDisplayName", arrResult[0].ToString());
if (usersetting.Key.ToString() == "UserDN")
string[] arrResult = usersetting.Value.ToString().Split('.');
myUserSettings.Add("UserDN", arrResult[0].ToString());
return myUserSettings;
private static byte[] HexStringToByteArray(string input)
byte[] Bytes;
int ByteLength;
string HexValue = "\x0\x1\x2\x3\x4\x5\x6\x7\x8\x9|||||||\xA\xB\xC\xD\xE\xF";
ByteLength = input.Length / 2;
Bytes = new byte[ByteLength];
for (int x = 0, i = 0; i < input.Length; i += 2, x += 1)
Bytes[x] = (byte)(HexValue[Char.ToUpper(input[i + 0]) - '0'] << 4);
Bytes[x] |= (byte)(HexValue[Char.ToUpper(input[i + 1]) - '0']);
return Bytes;Hi,
I'm trying to share a calendar through ews managed api v.2 and using exchange 2013 version.
i'm preparing a shared calendar and providing values to extended properties .
Here comes the problem when i'm trying to send the sharing request(email message)
The following is code snippet.
public void ShareCalendar(Calendar calendar)
ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2013);
service.Credentials = new NetworkCredential("user1", "password", "domain");
service.Url = new Uri("https://sampleUrl/ews/exchange.asmx");
try
// Bind to the folder
//Folder folderStoreInfo;
//folderStoreInfo = Folder.Bind(service, calendar.ExchangeId);
//string EwsID = folderStoreInfo.Id.UniqueId;
string EwsID = calendar.FolderExchangeId;
// The value of folderidHex will be what we need to use for the FolderId in the xml file
AutodiscoverService autoDiscover = new AutodiscoverService(ExchangeVersion.Exchange2013);
autoDiscover.Credentials = new NetworkCredential("user1", "password", "domain");
autoDiscover.RedirectionUrlValidationCallback = RedirectionUrlValidationCallback;
Dictionary<string, string> userSettings = GetUserSettings(autoDiscover);
string folderidHex = GetConvertedEWSIDinHex(service, EwsID, "[email protected]");
string domainName = string.Empty;
string mailBoxServer = string.Empty;
string userName = string.Empty;
foreach (var item in userSettings)
switch (item.Key)
case "UserDN":
domainName = item.Value.ToString();
break;
case "InternalMailboxServer":
mailBoxServer = item.Value.ToString();
break;
case "UserDisplayName":
userName = item.Value.ToString();
break;
string entryId = GetIntiatorEntryID(domainName);
string mailboxId = GetInvitationMailboxId(mailBoxServer, domainName);
string sharedFilePath = CreateSharingMessageAttachment(folderidHex, userName, entryId, mailboxId, "[email protected]", "calendar", calendar.FolderName);
// Create a new message
EmailMessage invitationRequest = new EmailMessage(service);
invitationRequest.Subject = "I'd like to share my calendar with you";
invitationRequest.Body = "Sent by Exchange Administrator on behalf of user";
//invitationRequest.Culture = "en-US";
invitationRequest.Sensitivity = Sensitivity.Normal;
// Set a sharing specific property on the message
invitationRequest.ItemClass = "IPM.Sharing"; /* Constant Required Value [MS-ProtocolSpec] */
byte[] byteEntryId = HexStringToByteArray(entryId);
// This is the Guid of the Sharing Provider in Exchange, and it's value does not change
Guid binSharingProviderGuid = new Guid("{AEF00600-0000-0000-C000-000000000046}");
// Even though I don't think setting this property is mandatory,
// it just seemed like the right thing to do and it works so I \
// ain't messin with it!
byte[] byteSharingProviderGuid = binSharingProviderGuid.ToByteArray();
string strPRBODYHTML = "<html dir=\"ltr\">\r\n<head>\r\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=iso-8859-1\">\r\n<meta name=\"GENERATOR\"
content=\"MSHTML 8.00.7601.17514\">\r\n<style id=\"owaParaStyle\">P {\r\n MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px \r\n}\r\n</style>\r\n</head>\r\n<body fPStyle=\"1\" ocsi=\"0\">\r\n<tt>\r\n<pre>SharedByUserDisplayName
(SharedByUserSmtpAddress) has invited you to view his or her Microsoft Exchange Calendar.\r\n\r\nFor instructions on how to view shared folders on Exchange, see the following article:\r\n\r\nhttp://go.microsoft.com/fwlink/?LinkId=57561\r\n\r\n*~*~*~*~*~*~*~*~*~*\r\n\r\n</pre>\r\n</tt>\r\n<div>\r\n<div
style=\"direction: ltr;font-family: Tahoma;color: #000000;font-size: 10pt;\">this is a test message</div>\r\n</div>\r\n</body>\r\n</html>\r\n";
string strBODY = @"
SharedByUserDisplayName (SharedByUserSmtpAddress) has invited you to view his or
her Microsoft Exchange Calendar.
For instructions on how to view shared folders on Exchange, see the
following article:
http://go.microsoft.com/fwlink/?LinkId=57561
*~*~*~*~*~*~*~*~*~*
test body
// Convert these to hex and binary equivelants to assign to their relevant
// extended properties
string hexPRBODYHTML = ConvertStringToHex(strPRBODYHTML);
byte[] binPRBODYHTML = HexStringToByteArray(hexPRBODYHTML);
Guid PropertySetSharing = Guid.Parse("00062040-0000-0000-C000-000000000046");//constant
Guid PropertySetInternetHeaders = Guid.Parse("00020386-0000-0000-C000-000000000046");//constant
ExtendedPropertyDefinition PidLidSharingProviderGuidProperty = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A01, MapiPropertyType.CLSID);
ExtendedPropertyDefinition ConversationIdProperty = new ExtendedPropertyDefinition(0x3013, MapiPropertyType.Binary);
// Sharing Properties (in order of reference according to protocol examples in: [MS-OXSHARE])
// Additional Property Constraints
// [MS-OXSHARE] 2.2.5.2
ExtendedPropertyDefinition PidTagMessageClass = new ExtendedPropertyDefinition(0x001A, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.5.1
//ExtendedPropertyDefinition PidNameContentClass = new ExtendedPropertyDefinition(DefaultExtendedPropertySet.InternetHeaders, "Content-Class", MapiPropertyType.String);
ExtendedPropertyDefinition PidNameContentClass = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "Content-class", MapiPropertyType.String);
// Common Message Object Properties
// [MS-OXSHARE] 2.2.1
ExtendedPropertyDefinition PidTagNormalizedSubject = new ExtendedPropertyDefinition(0x0E1D, MapiPropertyType.String);
// The PidTagSubjectPrefix is a zero-length string, so I do not set it
// ExtendedPropertyDefinition PidTagSubjectPrefix = new ExtendedPropertyDefinition(0x003D, MapiPropertyType.String);
// Sharing Object Message Properties
// [MS-OXSHARE] 2.2.2.12
ExtendedPropertyDefinition PidLidSharingProviderGuid = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A01, MapiPropertyType.Binary);
// [MS-OXSHARE] 2.2.2.13
ExtendedPropertyDefinition PidNameXSharingProviderGuid = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Provider-GUID", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.14
ExtendedPropertyDefinition PidLidSharingProviderName = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A02, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.15
ExtendedPropertyDefinition PidNameXSharingProviderName = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Provider-Name", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.16
ExtendedPropertyDefinition PidLidSharingProviderUrl = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A03, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.17
ExtendedPropertyDefinition PidNameXSharingProviderUrl = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Provider-URL", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.5
ExtendedPropertyDefinition PidLidSharingFlavor = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A18, MapiPropertyType.Integer);
// [MS-OXSHARE] 2.2.2.6
ExtendedPropertyDefinition PidNameXSharingFlavor = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Flavor", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.1
ExtendedPropertyDefinition PidLidSharingCapabilities = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A17, MapiPropertyType.Integer);
// [MS-OXSHARE] 2.2.2.2
ExtendedPropertyDefinition PidNameXSharingCapabilities = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Capabilities", MapiPropertyType.String);
// Sections 2.3 and 2.4 are also zero-length strings, so I won't set those either
// [MS-OXSHARE] 2.2.2.3
// ExtendedPropertyDefinition PidLidSharingConfigurationUrl = new //ExtendedPropertyDefinition(PropertySetSharing, 0x8A24, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.4
//ExtendedPropertyDefinition PidNameXSharingConfigUrl = new //ExtendedPropertyDefinition(DefaultExtendedPropertySet.InternetHeaders, "X-Sharing-Config-Url", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.10
ExtendedPropertyDefinition PidLidSharingLocalType = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A14, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.11
ExtendedPropertyDefinition PidNameXSharingLocalType = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Local-Type", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.7
ExtendedPropertyDefinition PidLidSharingInitiatorEntryId = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A09, MapiPropertyType.Binary);
// [MS-OXSHARE] 2.2.2.8
ExtendedPropertyDefinition PidLidSharingInitiatorName = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A07, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.2.9
ExtendedPropertyDefinition PidLidSharingInitiatorSMTP = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A08, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.3.1
ExtendedPropertyDefinition PidLidSharingRemoteName = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A05, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.3.2
ExtendedPropertyDefinition PidNameXSharingRemoteName = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Remote-Name", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.3.5
ExtendedPropertyDefinition PidLidSharingRemoteType = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A1D, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.3.6
ExtendedPropertyDefinition PidNameXSharingRemoteType = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Remote-Type", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.3.7
ExtendedPropertyDefinition PidLidSharingRemoteUid = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A06, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.3.8
ExtendedPropertyDefinition PidNameXSharingRemoteUid = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Remote-Uid", MapiPropertyType.String);
// [MS-OXSHARE] 2.2.3.3
ExtendedPropertyDefinition PidLidSharingRemoteStoreUid = new ExtendedPropertyDefinition(PropertySetSharing, 0x8A48, MapiPropertyType.String);
// [MS-OXSHARE] 2.2.3.4
ExtendedPropertyDefinition PidNameXSharingRemoteStoreUid = new ExtendedPropertyDefinition(PropertySetInternetHeaders, "X-Sharing-Remote-Store-Uid", MapiPropertyType.String);
//From troubleshooting I noticed I was missing
ExtendedPropertyDefinition PidTagPriority = new ExtendedPropertyDefinition(0x0026, MapiPropertyType.Integer);
ExtendedPropertyDefinition PidTagSensitivity = new ExtendedPropertyDefinition(0x0036, MapiPropertyType.Integer);
ExtendedPropertyDefinition PR_BODY_HTML = new ExtendedPropertyDefinition(0x1013, MapiPropertyType.Binary); //PR_BOD
ExtendedPropertyDefinition PR_BODY = new ExtendedPropertyDefinition(0x1000, MapiPropertyType.String);
ExtendedPropertyDefinition RecipientReassignmentProhibited = new ExtendedPropertyDefinition(0x002b, MapiPropertyType.Boolean);
// Section 2.2.1
invitationRequest.SetExtendedProperty(PidTagNormalizedSubject, "I'd like to share my calendar with you"); /* Constant Required Value [MS-OXSHARE] 2.2.1 */
//invitationRequest.SetExtendedProperty(PidTagSubjectPrefix, String.Empty); /* Constant Required Value [MS-OXSHARE] 2.2.1 */
// Section 2.2.2
invitationRequest.SetExtendedProperty(PidLidSharingCapabilities, 0x40220); /* value for Special Folders */
invitationRequest.SetExtendedProperty(PidNameXSharingCapabilities, "40220"); /* Test representation of SharingCapabilities value */
//invitationRequest.SetExtendedProperty(PidLidSharingConfigurationUrl, String.Empty); /* Zero-Length String [MS-OXSHARE] 2.2.2.3 */
//invitationRequest.SetExtendedProperty(PidNameXSharingConfigUrl, String.Empty); /* Zero-Length String [MS-OXSHARE] 2.2.2.4 */
invitationRequest.SetExtendedProperty(PidLidSharingFlavor, 0x20310); /* Indicates Invitation for a special folder [MS-OXSHARE] 2.2.2.5 */
invitationRequest.SetExtendedProperty(PidNameXSharingFlavor, "20310"); /* Text representation of SharingFlavor value [MS-OXSHARE] 2.2.2.6 */
invitationRequest.SetExtendedProperty(PidLidSharingInitiatorEntryId, byteEntryId); /* Value from the Initiator/EntryId value in the Sharing Message attachment .xml document */
invitationRequest.SetExtendedProperty(PidLidSharingInitiatorSMTP, "[email protected]"); /* Value from Initiator/Smtp Address in the Sharing message attachment .xml document */
invitationRequest.SetExtendedProperty(PidLidSharingInitiatorName, "User1"); /* Value from Initiator/Name Address in the Sharing message attachment .xml document */
invitationRequest.SetExtendedProperty(PidLidSharingLocalType, "IPF.Appointment"); /* MUST be set to PidTagContainerClass of folder to be shared */
invitationRequest.SetExtendedProperty(PidNameXSharingLocalType, "IPF.Appointment"); /* MUST be set to same value as PidLidSharingLocalType */
invitationRequest.SetExtendedProperty(PidLidSharingProviderGuid, byteSharingProviderGuid); /* Constant Required Value [MS-OXSHARE] 2.2.2.12 */
invitationRequest.SetExtendedProperty(PidNameXSharingProviderGuid, "AEF0060000000000C000000000000046"); /* Constant Required Value [MS-OXSHARE] 2.2.2.13 */
invitationRequest.SetExtendedProperty(PidLidSharingProviderName, "Microsoft Exchange"); /* Constant Required Value [MS-OXSHARE] 2.2.2.14 */
invitationRequest.SetExtendedProperty(PidNameXSharingProviderName, "Microsoft Exchange"); /* Constant Required Value [MS-OXSHARE] 2.2.2.15] */
invitationRequest.SetExtendedProperty(PidLidSharingProviderUrl, "http://www.microsoft.com/exchange"); /* Constant Required Value [MS-OXSHARE] 2.2.2.16 */
invitationRequest.SetExtendedProperty(PidNameXSharingProviderUrl, "http://www.microsoft.com/exchange"); /* Constant Required Value [MS-OXSHARE] 2.2.2.17 */
// Section 2.2.3
invitationRequest.SetExtendedProperty(PidLidSharingRemoteName, calendar.FolderName); /* MUST be set to PidTagDisplayName of the folder being shared */
invitationRequest.SetExtendedProperty(PidNameXSharingRemoteName, calendar.FolderName); /* MUST be set to same value as PidLidSharingRemoteName */
invitationRequest.SetExtendedProperty(PidLidSharingRemoteStoreUid, mailboxId); /* Must be set to PidTagStoreEntryId of the folder being shared */
invitationRequest.SetExtendedProperty(PidNameXSharingRemoteStoreUid, mailboxId); /* MUST be set to same value as PidLidSharingRemoteStoreUid */
invitationRequest.SetExtendedProperty(PidLidSharingRemoteType, "IPF.Appointment"); /* Constant Required Value [MS-OXSHARE] 2.2.3.5 */
invitationRequest.SetExtendedProperty(PidNameXSharingRemoteType, "IPF.Appointment"); /* Constant Required Value [MS-OXSHARE] 2.2.3.6 */
invitationRequest.SetExtendedProperty(PidLidSharingRemoteUid, folderidHex); /* MUST be set to PidTagEntryId of folder being shared */
invitationRequest.SetExtendedProperty(PidNameXSharingRemoteUid, folderidHex); /* Must be set to same value as PidLidSharingRemoteUid */
// Section 2.2.5
invitationRequest.SetExtendedProperty(PidNameContentClass, "Sharing"); /* Constant Required Value [MS-ProtocolSpec] */
invitationRequest.SetExtendedProperty(PidTagMessageClass, "IPM.Sharing"); /* Constant Required Value [MS-ProtocolSpec] */
// ********* ADDITIONAL MAPPED PROPERTIES IM FINDING AS I TROUBLESHOOT ********************** //
invitationRequest.SetExtendedProperty(PidTagPriority, 0); /* From troubleshooting I'm just trying to match up values that were missing */
invitationRequest.SetExtendedProperty(PidTagSensitivity, 0); /* From troubleshooting as well */
invitationRequest.SetExtendedProperty(PR_BODY_HTML, binPRBODYHTML); /* From troubleshooting OWA error pointing to serializing HTML failing */
invitationRequest.SetExtendedProperty(PR_BODY, strBODY);
invitationRequest.SetExtendedProperty(RecipientReassignmentProhibited, true); /* Because it seemed like a good idea */
// Add a file attachment by using a stream
// We need to do the following in order to prevent 3 extra bytes from being prepended to the attachment
string sharMetadata = File.ReadAllText(sharedFilePath, Encoding.ASCII);
byte[] fileContents;
UTF8Encoding encoding = new System.Text.UTF8Encoding();
fileContents = encoding.GetBytes(sharMetadata);
//fileContents = File.ReadAllBytes(sharedFilePath);
//// fileContents is a Stream object that represents the content of the file to attach.
invitationRequest.Attachments.AddFileAttachment("sharing_metadata.xml", fileContents);
////invitationRequest.Attachments.AddFileAttachment(sharedFilePath);
//// This is where we set those "special" headers and other pertinent
//// information I noted in Part 1 of this series...
//Attachment thisAttachment = invitationRequest.Attachments[0];
//thisAttachment.ContentType = "application/x-sharing-metadata-xml";
//thisAttachment.Name = "sharing_metadata.xml";
//thisAttachment.IsInline = false;
// Add recipient info and send message
invitationRequest.ToRecipients.Add(new EmailAddress() { Address = "[email protected]" });
invitationRequest.SendAndSaveCopy();
// I always end my methods by returning the EWS
// impersonated user to null to clean up
service.ImpersonatedUserId = null;
catch (Exception ex)
public String GetConvertedEWSIDinHex(ExchangeService esb, String sID, String strSMTPAdd)
// Create a request to convert identifiers.
AlternateId objAltID = new AlternateId();
objAltID.Format = IdFormat.EwsId;
objAltID.Mailbox = strSMTPAdd;
objAltID.UniqueId = sID;
//Convert PR_ENTRYID identifier format to an EWS identifier.
AlternateIdBase objAltIDBase = esb.ConvertId(objAltID, IdFormat.HexEntryId);
AlternateId objAltIDResp = (AlternateId)objAltIDBase;
return objAltIDResp.UniqueId.ToString();
public String GetInvitationMailboxId(string mailBoxServer, string domainName)
ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2013);
service.ImpersonatedUserId = new ImpersonatedUserId(ConnectingIdType.SmtpAddress, "[email protected]");
// Generate The Store Entry Id for the impersonated user
StringBuilder MailboxIDPointer = new StringBuilder();
string fqdn = mailBoxServer;
string legacyDN = domainName;
MailboxIDPointer.Append("00000000"); /* Flags */
MailboxIDPointer.Append("38A1BB1005E5101AA1BB08002B2A56C2"); /* ProviderUID */
MailboxIDPointer.Append("00"); /* Version */
MailboxIDPointer.Append("00"); /* Flag */
MailboxIDPointer.Append("454D534D44422E444C4C00000000"); /* DLLFileName */
MailboxIDPointer.Append("00000000"); /* Wrapped Flags */
MailboxIDPointer.Append("1B55FA20AA6611CD9BC800AA002FC45A"); /* WrappedProvider UID (Mailbox Store Object) */
MailboxIDPointer.Append("0C000000"); /* Wrapped Type (Mailbox Store) */
MailboxIDPointer.Append(ConvertStringToHex(fqdn)); /* ServerShortname (FQDN) */
MailboxIDPointer.Append("00"); /* termination bit */
MailboxIDPointer.Append(ConvertStringToHex(legacyDN)); /* Returns the userDN of the impersonated user */
MailboxIDPointer.Append("00"); /* terminator bit */
service.ImpersonatedUserId = null;
return MailboxIDPointer.ToString();
static bool RedirectionUrlValidationCallback(String redirectionUrl)
bool redirectionValidated = false;
if (redirectionUrl.Equals("https://SampleUrl/autodiscover/autodiscover.xml"))
redirectionValidated = true;
return redirectionValidated;
public String GetIntiatorEntryID(string domainName)
String result = String.Empty;
//// Bind to EWS
//ExchangeService service = ExchangeConnection.ExchangeService();
//service.ImpersonatedUserId =
//new ImpersonatedUserId(ConnectingIdType.SmtpAddress, "[email protected]");
//// Get LegacyDN Using the function above this one
string sharedByLegacyDN = domainName;
// A conversion function from earlier
string legacyDNinHex = ConvertStringToHex(sharedByLegacyDN);
StringBuilder addBookEntryId = new StringBuilder();
addBookEntryId.Append("00000000"); /* Flags */
addBookEntryId.Append("DCA740C8C042101AB4B908002B2FE182"); /* ProviderUID */
addBookEntryId.Append("01000000"); /* Version */
addBookEntryId.Append("00000000"); /* Type - 00 00 00 00 = Local Mail User */
addBookEntryId.Append(legacyDNinHex); /* Returns the userDN of the impersonated user */
addBookEntryId.Append("00"); /* terminator bit */
result = addBookEntryId.ToString();
//service.ImpersonatedUserId = null;
return result;
public string ConvertStringToHex(string input)
// Take our input and break it into an array
char[] arrInput = input.ToCharArray();
String result = String.Empty;
// For each set of characters
foreach (char element in arrInput)
if (String.IsNullOrEmpty(result))
result = String.Format("{0:X2}", Convert.ToUInt16(element)).ToString();
else
result += String.Format("{0:X2}", Convert.ToUInt16(element)).ToString();
return result.ToString();
public string CreateSharingMessageAttachment(string folderid, string userSharing, string userSharingEntryID, string invitationMailboxID, string userSharedTo, string dataType, string calendarName)
XmlDocument sharedMetadataXML = new XmlDocument();
string sharedMetaDataFilePath = string.Empty;
try
// Create a String that contains our new sharing_metadata.xml file
StringBuilder metadataString = new StringBuilder("<?xml version=\"1.0\"?>");
metadataString.Append("<SharingMessage xmlns=\"http://schemas.microsoft.com/sharing/2008\">");
metadataString.Append("<DataType>" + dataType + "</DataType>");
metadataString.Append("<Initiator>");
metadataString.Append("<Name>" + userSharing + "</Name>");
metadataString.Append("<SmtpAddress>" + "[email protected]" + "</SmtpAddress><EntryId>" + userSharingEntryID.Trim());
metadataString.Append("</EntryId>");
metadataString.Append("</Initiator>");
metadataString.Append("<Invitation>");
metadataString.Append("<Title>" + calendarName + "</Title>");
metadataString.Append("<Providers>");
metadataString.Append("<Provider Type=\"ms-exchange-internal\" TargetRecipients=\"" + userSharedTo + "\">");
metadataString.Append("<FolderId xmlns=\"http://schemas.microsoft.com/exchange/sharing/2008\">");
metadataString.Append(folderid);
metadataString.Append("</FolderId>");
metadataString.Append("<MailboxId xmlns=\"http://schemas.microsoft.com/exchange/sharing/2008\">");
metadataString.Append(invitationMailboxID);
metadataString.Append("</MailboxId>");
metadataString.Append("</Provider>");
metadataString.Append("</Providers>");
metadataString.Append("</Invitation>");
metadataString.Append("</SharingMessage>");
sharedMetadataXML.LoadXml(metadataString.ToString());
string tempPath = System.IO.Path.GetTempPath();
sharedMetaDataFilePath = tempPath + "sharing_metadata.xml";
sharedMetadataXML.Save(sharedMetaDataFilePath);
catch (Exception eg)
throw eg;
return sharedMetaDataFilePath;
public Dictionary<string, string> GetUserSettings(AutodiscoverService autodiscoverService)
GetUserSettingsResponse userresponse = autodiscoverService.GetUserSettings(
"[email protected]",
UserSettingName.UserDisplayName,
UserSettingName.InternalMailboxServerDN,
UserSettingName.UserDN
Dictionary<string, string> myUserSettings = new Dictionary<string, string>();
foreach (KeyValuePair<UserSettingName, Object> usersetting in userresponse.Settings)
if (usersetting.Key.ToString() == "InternalMailboxServerDN")
int lastIndexOfEqual = usersetting.Value.ToString().LastIndexOf("=");
string subString = usersetting.Value.ToString().Substring(lastIndexOfEqual + 1);
string value = subString;
myUserSettings.Add("InternalMailboxServer", value.ToString());
if (usersetting.Key.ToString() == "UserDisplayName")
string[] arrResult = usersetting.Value.ToString().Split('.');
myUserSettings.Add("UserDisplayName", arrResult[0].ToString());
if (usersetting.Key.ToString() == "UserDN")
string[] arrResult = usersetting.Value.ToString().Split('.');
myUserSettings.Add("UserDN", arrResult[0].ToString());
return myUserSettings;
private static byte[] HexStringToByteArray(string input)
byte[] Bytes;
int ByteLength;
string HexValue = "\x0\x1\x2\x3\x4\x5\x6\x7\x8\x9|||||||\xA\xB\xC\xD\xE\xF";
ByteLength = input.Length / 2;
Bytes = new byte[ByteLength];
for (int x = 0, i = 0; i < input.Length; i += 2, x += 1)
Bytes[x] = (byte)(HexValue[Char.ToUpper(input[i + 0]) - '0'] << 4);
Bytes[x] |= (byte)(HexValue[Char.ToUpper(input[i + 1]) - '0']);
return Bytes;
am i missing anything
any help is appreciated
Thanks in advance -
[office365 Exchange online][MVC5][EWS Managed Api] Need a hack to get access token ?
Hi there, I am using following code example to get access token from Azure AD online. I need to bridge EWS managed api with office 365 Api via Azure AD. The below code is working just fine in my MVC application but I am looking for a way to get the access
token in simple string returning function so that I can use it to make call against EWS mananged api.
private static string tempToken = "";
public static string GetAccessToken()
return tempToken;
internal static async Task<OutlookServicesClient> EnsureOutlookServicesClientCreatedAsync(string capabilityName)
var signInUserId = ClaimsPrincipal.Current.FindFirst(ClaimTypes.NameIdentifier).Value;
var userObjectId = ClaimsPrincipal.Current.FindFirst("http://schemas.microsoft.com/identity/claims/objectidentifier").Value;
AuthenticationContext authContext = new AuthenticationContext(Settings.Authority, new NaiveSessionCache(signInUserId));
try
DiscoveryClient discClient = new DiscoveryClient(Settings.DiscoveryServiceEndpointUri,
async () =>
var authResult = await authContext.AcquireTokenSilentAsync(Settings.DiscoveryServiceResourceId,
new ClientCredential(Settings.ClientId,
Settings.AppKey),
new UserIdentifier(userObjectId,
UserIdentifierType.UniqueId));
return authResult.AccessToken;
var dcr = await discClient.DiscoverCapabilityAsync(capabilityName);
return new OutlookServicesClient(dcr.ServiceEndpointUri,
async () =>
var authResult = await authContext.AcquireTokenSilentAsync(dcr.ServiceResourceId,
new ClientCredential(Settings.ClientId,
Settings.AppKey),
new UserIdentifier(userObjectId,
UserIdentifierType.UniqueId));
return authResult.AccessToken;
catch (AdalException exception)
//Handle token acquisition failure
if (exception.ErrorCode == AdalError.FailedToAcquireTokenSilently)
authContext.TokenCache.Clear();
return null;
This is an excerpt from Microsoft single tenant application in MVC5. In the code, I have created a function called GetAccessToken() which does nothing.. I am hoping you experts can help me figure out how to transfer the accessToken from EnsureOutlookServcesClientCreated
function which is actually returning token, to my GetAccessToken() so that I can make call against EWS managed Api. Sorry, If I sound pretty stupid but I really need your help in this regard.
best regards,Yes sir, Let me try to explain me about my scenario. I need to use EWS managed Api with office 365 Rest Api to get benefits from both the Apis. Here is here code I am using to connect to EWS managed Api but it is failing with 401:Unauthorized. I already
have "Full Access" turned on in Azure AD. I have the access token from AZure AD and want to use it to make call against EWS managed Api.
var outlookClient = await AuthHelper.EnsureOutlookServicesClientCreatedAsync("Mail");
//IPagedCollection<IMessage> messagesResults = await outlookClient.Me.Messages.ExecuteAsync();
// Get the ID of the first message.
// string messageId = messagesResults.CurrentPage[0].Id;
string tokenx = AuthHelper.GetAccessToken();
ExchangeService service = new ExchangeService(ExchangeVersion.Exchange2013);
service.HttpHeaders.Add("Authorization", "Bearer " + tokenx);
service.PreAuthenticate = true;
service.SendClientLatencies = true;
service.EnableScpLookup = false;
service.Url = new Uri("https://outlook.office365.com/EWS/Exchange.asmx");
// Get all the folders in the message's root folder.
ExFolder rootfolder = ExFolder.Bind(service, WellKnownFolderName.MsgFolderRoot);S
Scenario of my migration application:
1. I have a Gmail mailbox email in Raw(complete email in base64-urlsafe with attachments) format with RFC2822. I need to migrate this mailbox to Exchange online. I believe EWS managed Api has better support on this one.
2. Likewise I need to migrate Gmail Calendars, Tasks and Contacts to Exchange online.
I would be highly grateful to you , if you tell me how to bridge EWS managed Api with office 365 Api.
best regards, -
EWS Managed API 2.1 Download: 32 or 64 bit is not clear
Hello,
When I download EWS Managed API 2.1 from the following link, I don't get both 32bit and 64 bit options.
http://www.microsoft.com/en-ca/download/details.aspx?id=42022
When I install it, it installs it in the 32 bit program file folder, which concerns me:
C:\Program Files (x86)\Microsoft\Exchange\Web Services\2.1\
How do I make sure that I am using the 64 bit of the EWS Managed API 2.1
Thank you,Alan, we have consolidated the Managed API to just one msi. The dll's in the IL are not architecture specific, so they should work the same way for both x86 or 64 bit.
-
How to get list of Users[MailBoxes] in Exchange Server 2013 by using EWS Managed API
Hi all,
I need list of Users exists in my Exchange server 2013 , i.e Mail Box Users login name.
I was created Full Access permissions of all users to Admin user account, to access each user Mailbox programatically
i need the list of Mailboxes in exchange server .
MailBox mailbox = new MailBox("user");
Please share your ideasHi,
We can run the following command in Exchange Management Shell to get all user mailboxes name and export it to a .csv file:
Get-Mailbox -ResultSize Unlimited | Select Name,Alias,RecipientTypeDetails | Export-Csv c:\Users.csv
If you want to retrieve the list of users by using EWS Managed API, I suggest you can ask a question in Exchange Development forum for more suggestion:
http://social.technet.microsoft.com/Forums/en-US/exchangesvrdevelopment/threads
Regards,
Winnie Liang
TechNet Community Support -
This is happening with random users but not all.
User receives voice mail in outlook - deletes from inbox
On unity connection the voice mail remains in the connection inbox.
Now on other users the deleted VM is moved to deleted items in connection as expected and works just fine.
Unity Connection 9.1
Exchange 2010
Any ideas? I ran a re-sync on the unified messaging accounts and a reset but it still does not seem to be working for those select users.I suspect you are enable Exchange cache mode and delete items offline.
If no, please recreate a new Outlook profile and check if the issue still persists. Thanks.
Tony Chen
TechNet Community Support -
Sent and Deleted items not showing up
I'm not able to see sent or deleted items in outlook. I am not using a ost and if I log onto OWA I can see both.
Hi,
I'm marking the reply as answer as there has been no update for a couple of days.
If you come back to find it doesn't work for you, please reply to us and unmark the answer.
Best Regards,
Steve Fan
Forum Support
Come back and mark the replies as answers if they help and unmark them if they provide no help.
If you have any feedback on our support, please click
here -
I can make a note and It deletes it, sometimes a week later sometimes 3-5 weeks later. BUT there's 1 note I've had for about 9 months and it's still there. I've had it since before the new iOS 7 system... And with the emails I can delete then and then they pop back up, delete again and there they are again. But it's not all the time. Just whenever it feels like it. And my phone isn't old, I've only had it about 3 months now. Is anyone else having these issues? They're driving me nuts!
Give it a go
Hold the cmd key (next to the spacebar) & try clicking a few messages. Command key looks a bit like a cloverleaf.
There are other shortcut keys as I mentioned before just try a few key combinations & you'll get the hang of it.
Once the messages are selected you can either drag them into a Mailbox or use the menus to perform operations like 'Mark as read' or 'Mark as junk' etc.
You may want to show the mailbox list (if it is hidden). This is in the 'View menu > Show Mailbox list'. It should make it easier to move the messages around.
The shift key is the one that lets you select a range, just select the starting message, then hold shift & select the end message.
I think it is harder to explain in words, so try it out you'll get to grips with it.
Good luck. -
Email issue - sent items not actually sending
Has anybody come across this issue before? I have an IMAP email account on my Q10 and a 4G contract with O2. Sometimes (at least, I think this is an intermittent problem!) emails that I send from my Q10 show as sent and appear in the sent items folder on the server but they do not actually send and they never arrive at the recipient's mailbox. This is very confusing for me as the user because, as far as I can tell, the email looks to have been sent successfully and there is no warning that it has failed. Any thoughts on why this might happen?
Okay. Backing up.
You send an email to yourself from the iPad and also do the same from the BlackBerry. Both devices show that the email was sent. You check the email account through the web interface and see the messages you sent in the sent items folder. You check the inbox and the message sent with the iPad is there but sometimes the message sent with the BlackBerry is not there.
Is that essentially correct? If so, it sounds like the email service. I wonder if you did the experiment over and over if you wouldn't find that the problem occasionally happens with email sent with other devices. I also wonder if the missing emails won't eventually "arrive" in the Inbox.
I'm also curious if this happens with another email service. Do you have a Yahoo or Gmail or ISP account to test with?
- Ira -
If I delete a note on my Iphone, will it delete on my computer? After its already been synced.
I have already synced all my notes onto my computer, from my Iphone. Notes are currently in the mail on my Macbook. However I am curious as to if i delete some notes on my phone to allow more space, will the notes i deleted on my iphone be deleted as well on my Macbook?
I believe if you configured your iPhone as per the Gmail instructions (http://mail.google.com/support/bin/answer.py?hl=en&answer=77702 - also look at the recommended client settings in step 8) it archives the message so it still appears in "All Mail" in Gmail. You would need to move it to "Trash" on the iPhone (I think) to permanently delete it...
-
IPhone 5 sending all "Sent Emails" to "Trash" Folder and deleted items not showing up at all
My boss has an iPhone 5 and today she realized that trash folder only has the last 50 emails that she has sent.
The trash folder is empty.
We use gmail. Her outlook is fine and the web interface is fine. She's tried restarting her phone. Will we have to delete the account and resync? (please say no...)
Thanks!Dear Mr. Rakesh Vijayan,
What is your justification for below behavior?
Using basic Gapps (free) email server,IMAP option client with MSO2013. Window 7 professional
MO Professional Plus,
(15.0.4535.1006), MSO(15.0.4535.1507)32-bit.
Auto migrated/upgraded from MS2007 to MS2013 in March, 2013.
Inbox repair tools has been run 03 times since last 6 months in safe mode..
Already configured Settings> advanced and deselect "Do not save copies of sent items
Already configured File > Account Setting > double-click your IMAP account and adjust "Mail to keep offline" to "All".
Since March 2013, 95% mails are getting saved/appearing in Sent Items folder. Only some times few mails are not appearing in sent item outlook client folder.
All those emails are also appearing in All mail Folders.
Any email sent from Gapps web interface/browser definitely getting save/ appearing in sent item outlook client folder.
But now since last 4 days no email sent using outlook are appearing in sent items folder.
Sincerely Yours
Kranti Mohan | Head-Corporate Sales, Mkt. & Development |
GPS Address:30.725144N,76.765755E
Maya Hotels|SCO 325-328 | Himalaya Marg | Sector-35B | Chandigarh-160022, India.
T: +91(0172) 4688774x (D)/4688700x174 | M: +91 (0) 9915707030 | F: +91 (0172) 2660555
[email protected] | http://www.mayahotels.in
http://www.facebook.com/mayahotel | http://www.youtube.com/user/mayahotels
http://twitter.com/mayahotels | https://www.orkut.co.in/Main#Community?cmm=101119348
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