Exchange Online mailbox Deletion check

Hi,
I am facing a peculiar problem. When we delete a mailbox in Exchange Online and we find the mailbox is not visible in Exchange Admin center. This is fine. However (sometimes), a few minutes later, when we check whether the mailbox has been deleted using
EWS api (GetSearchableMailboxes), the mailbox is still returned in the results. Therefore, even though mailbox is not visible in Exchange Admin center we cannot determine with certainty (programmatically) whether mailbox exists or not.
How do we ensure that the check for mailbox existence is consistent at all times. Is there any api or command available for this purpose. Does it take time for Exchange to reflect the deleted status of mailbox.
Please suggest.
Thanks & Regards,
Gagan
Gagan

It's not clear to me what type of migration you're trying to do. A cutover migration would be an option as long as you understand the limitations of that process. Otherwise are you looking to use a third-party migration tool or some other
mechanism?
The reason you would end up with two mailboxes is if when you assign an Exchange license to a user in the cloud without DirSync, a mailbox is provisioned for that user. You can assign a license after the mailbox is moved assuming you have a mail-enabled
user in the cloud and can do a remote move to it.
Once you manage to get the mailbox to the cloud, now you have to deal with routing which means you'll need a mail-enabled user on-premises for every mailbox in the cloud and will need to have a target address with a coexistence domain such as "@tenant.mail.onmicrosoft.com".
Likewise, Exchange Online will need a mail-enabled user for every on-premises mailbox in order to have a populated GAL and route in that direction.
For security reasons we don't to setup Dirsync and hybrid.
I hear this occasionally and remind organizations that you're putting the actual data (the stuff the credentials protect) in Microsoft's datacenters. If it's a question of trust, cloud services might not be the most appropriate solution for the
organization. The Office 365 Trust Center (http://trust.office365.com/) can provide some insight into the controls that Microsoft has in place to protect your data.
DirSync or the new AADSync can be scoped such that they only sync limited objects. From there, you have the options of Password (Hash) Sync with DirSync (not yet with AADSync) or using AD FS which leaves the authentication with your on-premises
directory.
Joseph Palarchio http://www.itworkedinthelab.com

Similar Messages

Questions on managing Office 365/Exchange Online Mailboxes in Server 2012 Essentials

Wondered if anyone could answer a couple of queries:
When managing Office 365/Exchange Online mailboxes in Windows Server 2012 Essentials:-
1. Does the server itself act as the Exchange server i.e. does it do all of the downloading/sending of emails or does Outlook on each workstation still communicate direct with the Office 365/Exchange Online server address?
2. Does Outlook on each workstation have the Exchange server address set to the internal address of the Server 2012 Essentials box or does it still have the external Office 365/Exchange Online server address?
I don&#39;t work for Microsoft - I just use their products.

Hi,
When you integrate Office 365/Exchange Online mailboxes in Windows Server 2012 Essentials,you can see the mailbox usage information on the Essentials Dashboard and manager users. However, the essentials server won't download/send emails and Outlook
will still communicate with the O365/Exchange Online Server. In addition, the Exchange server address would be point to the external server address.
You can also refer to the article below to get more related information:
Email Options Supported by Windows Server 2012 Essentials
Best regards,
Susie
Please remember to mark the replies as answers if they help and unmark them if they provide no help. If you have feedback for TechNet Subscriber Support, contact [email protected]

Exchange Online mailbox configuration without Exchange Hybrid Configuration wizard.

HI!
We have on premise exchange server 2010 sp2 deployed with domain1.com. We have registered our tenant and verified the ownership of domain1.com on our office365 tenant. We have successfully deployed EOP and configured inbound and outbound connectors
and all the mailflow is working fine. We havenot deployed directory sync server and ADFS for the deployment of EOP. Our Mx is pointed to domain1-com.mail.protection.outlook.com and all the mails are sent and received through EOP. I
want to move a user mailbox such as [email protected] to Exchange Online from on-premise exchange without configuring Dirsync and Exchange Hybrid configuration wizard. I already know the some of the limitations.
If I create a user account [email protected] on the tenant and activate the Exchange License on office365 to create the Mailbox on Exchange online.
I want to know that if I have to create any other send and receive connector or any other configuration either on office365 or exchange online if I cutover one user from our on-premise to exchange online without configuring Exchange Hybrid configuration
wizard on our on premise exchange server??
Will this effect the mailflow between onpremise and exchange online users?
Regards,
Abdullah Salam

It's not clear to me what type of migration you're trying to do. A cutover migration would be an option as long as you understand the limitations of that process. Otherwise are you looking to use a third-party migration tool or some other
mechanism?
The reason you would end up with two mailboxes is if when you assign an Exchange license to a user in the cloud without DirSync, a mailbox is provisioned for that user. You can assign a license after the mailbox is moved assuming you have a mail-enabled
user in the cloud and can do a remote move to it.
Once you manage to get the mailbox to the cloud, now you have to deal with routing which means you'll need a mail-enabled user on-premises for every mailbox in the cloud and will need to have a target address with a coexistence domain such as "@tenant.mail.onmicrosoft.com".
Likewise, Exchange Online will need a mail-enabled user for every on-premises mailbox in order to have a populated GAL and route in that direction.
For security reasons we don't to setup Dirsync and hybrid.
I hear this occasionally and remind organizations that you're putting the actual data (the stuff the credentials protect) in Microsoft's datacenters. If it's a question of trust, cloud services might not be the most appropriate solution for the
organization. The Office 365 Trust Center (http://trust.office365.com/) can provide some insight into the controls that Microsoft has in place to protect your data.
DirSync or the new AADSync can be scoped such that they only sync limited objects. From there, you have the options of Password (Hash) Sync with DirSync (not yet with AADSync) or using AD FS which leaves the authentication with your on-premises
directory.
Joseph Palarchio http://www.itworkedinthelab.com

Exchange Online Management cmdlets return Display Name instead of Identity

Hello,
We've got an issue when managing our Exchange Online environment using remote PowerShell.
We use Exchange management cmdlets to manage Exchange Online mailboxes. When we run, for example, the
Get-MailboxPermission or Get-RecipientPermission
cmdlets, it returns Display Names of the users with mailbox rights. Previously, when we initially tested remote PowerShell with Exchange Online, the cmdlets returned the
Identity property, which is unique and worked well for us. However, currently the cmdlets return the
Display Name, which is not unique and causes us issues. For example, in our environment there can exist two or more users with the same Display Name (see highlighted on the screenshot):
In cases when only one of the users is granted a permission, we cannot distinguish programmatically, which of the 2 users this is. Also, we cannot run cmdlets, such as
Get-SecurityPrincipal, to get more info about the principals who are granted the permission.
Is it possible to get the old behavior of the cmdlets back so that they return the unique
Identity instead of the non-unique Display Name? Or how do we workaround this?

Hello,
Can anyone update on this? The issue causes us HUGE problems :(

[Exchange-Online][EWS][C#][Windows]: How do I mark all mails in a folder as read?

Hi,
I'm developing a C# application in Visual Studio 2013 Pro Update 2 to query an Exchange Online mailbox folder and read mails into my CRM solution. I can connect without a problem, read mails without a problem, mark individual emails as read without a problem,
etc. but I don't seem to be able to mark all emails in a specific folder as being un/read.
I can see that in Exchange 2013 that the following code would do the trick, but it doesn't work for Exchange Online:-
Folder folder = Folder.Bind(service,folderID);
folder.MarkAllItemsAsRead(true);
To mark an individual mail as being read I'm using this code:-
public void MarkAsRead(ExchangeService exchangeService, ItemId itemID)
Item mess = Item.Bind(exchangeService, itemID);
EmailMessage message = mess as EmailMessage;
message.IsRead = true;
message.Update(ConflictResolutionMode.AlwaysOverwrite);
Does anyone know if Exchange Online has a method to mark all mails as read and if so, how do I call it?
Thanks,
Mike

I should probably say that when attempting to call the MarkAllItemsAsRead() method from my code I get the following error:-
"Microsoft.Exchange.WebServices.Data.ServiceVersionException was caught
HResult=-2146233088
Message=Method MarkAllItemsAsRead is only valid for Exchange Server version Exchange2013 or later.
Source=Microsoft.Exchange.WebServices
StackTrace:
       at Microsoft.Exchange.WebServices.Data.EwsUtilities.ValidateMethodVersion(ExchangeService service, ExchangeVersion minimumServerVersion, String methodName)
       at Microsoft.Exchange.WebServices.Data.ExchangeService.MarkAllItemsAsRead(FolderId folderId, Boolean readFlag, Boolean suppressReadReceipts)
       at Microsoft.Exchange.WebServices.Data.Folder.MarkAllItemsAsRead(Boolean suppressReadReceipts)
       at Renishaw.EWS.ExchangeWebService.GetEmails(ExchangeService service) in c:\pvcs_gotdotnet\work\CRMEmailProcessing\CRMEmailProcessing\EWS\ExchangeWebService.cs:line 89
       at Renishaw.CRM.Service.EmailManager.ReadEmails() in c:\pvcs_gotdotnet\work\CRMEmailProcessing\CRMEmailProcessing\Service\EMailManager.cs:line 122
InnerException: "

Incremental Sync For Exchange Online Staged Migration

While doing an Exchange Online staged migration, the on-premises mailboxes get synchronized to the cloud, along with the targetAddress attribute being rewriten in the on-premises environment in order for all new mails to be delivered to the cloud. I'd like
more control over the whole process and would like to better control when the "switch" is being done - namely when the user starts using his cloud mailbox instead of the on-premises one.
By using New-MigrationBatch, the migration of the mailboxes can be done so that the targetAddress attribute doesn't get rewritten, allowing for the user to keep receiving new mails on his old mailbox. However there is no incremental sync that happens periodically
(as in the
case for cutover and IMAP Exchange migrations) to allow the cloud mailbox to be kept in sync. Is there a workaround to enable this feature for batches belonging to staged migrations as well ?

Hi,
I recommend you refer to the following articles:
High Availability and Business Continuity
Exchange Online mailboxes are continuously replicated to multiple database copies, in geographically dispersed Microsoft data centers, to provide data restoration capability in the event of a local messaging infrastructure failure. For large-scale failures,
service continuity management procedures are initiated.
Thanks.
Niko Cheng
TechNet Community Support

What is the behavior of items in an Exchange Online Inactive mailbox that were under a Litigation Hold for a set period of time.

I am specifically asking what happens to the items in an Inactive Mailbox that was placed on Litigation Hold prior to Deletion when the Litigation Hold has say a '6 mo.' Retention Period assigned.
Do any of those items 'expire' out of the mailbox? Do only the items in the 'Admin' folders of the Deleted Items get removed, or none?
I am not asking about recoverability of that mailbox, more of what the behavior is specifically when the Litigation Hold is set to expire after a certain amount of time.

There is no expiration, check the blog post here:
http://blogs.technet.com/b/exchange/archive/2013/03/21/preserve-mailbox-data-for-ediscovery-using-inactive-mailboxes-in-exchange-online.aspx
All content in an inactive mailbox is on hold until you remove the hold from the mailbox.

Monitoring many mailboxes in Exchange OnLine

Hi
I'm developing a large-scaled Exchange calendar synchronization application using EWS Managed API 2.1.
When Microsoft upgraded the Exchange OnLine platform to Exchange 2013 I had to re-write some of the code in order to adapt to the new behavior of the CAS (e.g. subscription groups and GroupingInformation).
Typically our customers have 4000-5000 mailboxes that we have to monitor but some of them have 20.0000 or more. As the trend is that also large companies are moving their Exchange to the cloud I often get questions from sales about how many calendars
we can monitor for changes.
So, now to my question;
Is there any absolute limit for how many mailboxes that can be monitored in Exchange OnLine?
I'm using EWS Managed API 2.1, utilizing Autodiscover, Impersonation, Streaming Notifications and subscription groups (200 subscriptions each). I'm aware of that throttling limits will be reached from time to time and that I have to handle them as they occur.
Best Regards
Jens
Jens Eriksson TalkIT Communication AB

Hi CCStefanonni,
If you delete a user account or remove a license from a user, mailbox will be permanently deleted after 30days. Since you are in Midsize Business plan you don't have in-place hold to keep inactive user data for more than 60 days. As I see, you have two options,
Convert the user mailbox to a Shared Mailbox. Keep in mind shared mailboxes are only 5GB in size.
Download the PST and keep it somewhere safe (ex: one drive). You can upload the PST through the shell or though Outlook later if needed.
Thanks

Decommission Exchange 2010 after all mailboxes have been moved to Exchange Online

Currently very confused on what to do.
I'm looking to migrate mailboxes to Exchange online using a Hybrid deployment with Dirsync. The users have multiple email and domain addresses. They are moving away from their SBS 2011 and Exch 2010 server. They have an AD and File and Print server. Once
all mailboxes are moved and mx records are changed and everything is running smootkly. I would like to then decommission SBS and Exch 2010 box and still use DIRsync
Few questions
Once I remove Exch 2010 what wont I be able to do. Cant find anything specific online
Will I still be able to create a user in AD then login to Exchange online and assign a license then
the user would have mailbox
Edit a user and add smtp email address.
As I don’t have many users should I rather use PST migration or will I run into the same problems.

Yes, you should move the arbitration mailboxes - they are organizational mailboxes, not mailbox database mailboxes.
Make sure all Exchange resources and operations hosted on this server have been moved to your Exchange 2013 system before you remove Exchange from this server. If you try to remove Exchange (in either the GUI or the command line) and something is
still using this server, you will be alerted that something is still using the server and will be told what it is.
HTH ...

Migrating 122GB mailbox to Exchange Online

Hi all,
I'm attempting to migrate a 122GB journal from a decommissioned on premise exchange (SBS2008 - Exchange 2007)
Using a 32 bit Windows 7 machine with Outlook 2007
So far, I've attempted to use Export-Mailbox -Identity journal -PSTFolderPath
E:\drive\journal.pst
After a week of it sat exporting, it eventually failed with an error regarding too many corrupt messages
On my second attempt, I added the flag of -BadItemLimited 1000 and it sat for a week
Approving Object
I think next I will, create a new mailstore and move it across and try and export from that..
Failing that, specify export by date?
Does anybody have any suggestions/tips/instructions on how to move a mailbox of that size?
Thanks

Hi,
As far as I know, Resource Mailboxes (Room, Shared, Equipment) is moved between on-premise Exchange servers in the exact same way as User Mailboxes:
http://social.technet.microsoft.com/Forums/exchange/en-US/f60d736d-0d45-4c27-adc8-a7e04afdb6e3/resource-mailboxes-and-contacts-move-during-transition-to-exchange-2013?forum=exchangesvrdeploy
Based on my research, there is nothing special for resource mailboxes in the transition from on-premise to Exchange online:
http://technet.microsoft.com/en-us/library/jj898486(v=exchg.150).aspx
And you’re welcomed to confirm it on our Exchange online forum:
http://social.technet.microsoft.com/Forums/msonline/en-US/home?forum=onlineservicesexchange
If you have any question, please feel free to let me know.
Thanks,
Angela Shi
TechNet Community Support

Deleting the old Exchange 2007 mailbox entry safely from ADSI Edit ?

Hi,
I'm having problem with the old Exchange maiilbox 2007 CCR cluster name still showing whenever I use the Powershell script:
Get-MailboxServer | Select Name, AdminDisplayVersion, ServerRole, ExchangeVersion, IsValid, ExchangeLegacyServerRole, DistinguishedName
Can anyone please assist me what to backup first before so that I can safely remove / delete the following highlighted entry from my domain controller:
Is that the correct location where I can safely delete the old Exchange Server mailbox entry ? All of our Exchange Servers are 2010 SP2.
There is also the computer object named MAILBOX when I do the search in
Active Directory Users & Computers console.
So can anyone please clarify if this is the best and safest way to do without causing any email downtime ?
/* Server Support Specialist */

Hey there,
You need to ensure that you have the following backups in order to proceed with the decommissioning process:
1. System State Backup of your Active directory
2. Exchange Database Flat file Backup
3. Run ExBPA Report and Export the Report for future reference.
4. Go to Registry Editor and Export “My Computer” as Registry backup.
Yes you are at the right location to safely delete the old Exchange Server mailbox entry .
The best & cleanest way is to delete the whole server object. This wouldn't break your Exchange 2010 configuration. But make sure you don't delete the “Servers” folder itself.
Feel free to revert back for further queries
Thanks
~Phil

Cutover onprem mailbox to exchange online without Hybrid configuration wizard.

HI!
We have on premise exchange server 2010 sp2 deployed with domain1.com. We have registered our tenant and verified the ownership of domain1.com on our office365 tenant. We have successfully deployed EOP and configured inbound and outbound connectors
and all the mailflow is working fine. We havenot deployed directory sync server and ADFS for the deployment of EOP. Our Mx is pointed to domain1-com.mail.protection.outlook.com and all the mails are sent and received through EOP. I
want to move a user mailbox such as [email protected] to Exchange Online from on-premise exchange without configuring Dirsync and Exchange Hybrid configuration wizard. I already know the some of the limitations.
If I create a user account [email protected] on the tenant and activate the Exchange License on office365 to create the Mailbox on Exchange online.
I want to know that if I have to create any other send and receive connector or any other configuration either on office365 or exchange online if I cutover one user from our on-premise to exchange online without configuring Exchange Hybrid configuration
wizard on our on premise exchange server??
Will this effect the mailflow between onpremise and exchange online users?
Regards,
Abdullah Salam

It's not clear to me what type of migration you're trying to do. A cutover migration would be an option as long as you understand the limitations of that process. Otherwise are you looking to use a third-party migration tool or some other
mechanism?
The reason you would end up with two mailboxes is if when you assign an Exchange license to a user in the cloud without DirSync, a mailbox is provisioned for that user. You can assign a license after the mailbox is moved assuming you have a mail-enabled
user in the cloud and can do a remote move to it.
Once you manage to get the mailbox to the cloud, now you have to deal with routing which means you'll need a mail-enabled user on-premises for every mailbox in the cloud and will need to have a target address with a coexistence domain such as "@tenant.mail.onmicrosoft.com".
Likewise, Exchange Online will need a mail-enabled user for every on-premises mailbox in order to have a populated GAL and route in that direction.
For security reasons we don't to setup Dirsync and hybrid.
I hear this occasionally and remind organizations that you're putting the actual data (the stuff the credentials protect) in Microsoft's datacenters. If it's a question of trust, cloud services might not be the most appropriate solution for the
organization. The Office 365 Trust Center (http://trust.office365.com/) can provide some insight into the controls that Microsoft has in place to protect your data.
DirSync or the new AADSync can be scoped such that they only sync limited objects. From there, you have the options of Password (Hash) Sync with DirSync (not yet with AADSync) or using AD FS which leaves the authentication with your on-premises
directory.
Joseph Palarchio http://www.itworkedinthelab.com

Site mailboxes with Exchange Online?

Hi All,
We would like to use Site Mailboxes with our On-Prem 2013 Ent deployment. In addition to our On-prem deployement, we also have the full O365 suite including Exchange, SharePoint, Lync, etc.
Question: Can we use Site Mailboxes in our On-prem environment, connected to Exchange online?
The tables at the bottom of the following article indicates that SharePoint Online must be included in the O365 subscription, but the notes are not clear as to whether it is a requirement to use the SharePoint Online instance of SharePoint or if we could
use our On-Prem instance.
http://technet.microsoft.com/en-us/library/exchange-online-sharing-and-collaboration.aspx

Hi,
According to your post, my understanding is that you wanted to use SharePoint 2013 on-prem and Exchange online for Site mailbox feature.
I’d like to briefly introduce the Site mailbox creation in SharePoint online at first. The Site mailbox is enabled by the site collection admin and the whole creation process is finished from the background. For the users who want to access the Site mailbox,
it requires the SharePoint online users to also have the Exchange online licenses.
In SharePoint on-premise, the Site Mailbox requires Exchange Server 2013 is mentioned in this SharePoint Server 2013 instruction:
Configure site mailboxes in SharePoint Server 2013.
Since Exchange on-premise includes more features and capabilities than Exchange online, I’ think it’s not feasible to integrate the SharePoint on-premise to the Exchange online service for setting up the Site Mailbox feature.
Best Regards,
Linda Li
Linda Li
TechNet Community Support

Delivery delayed possibly because of Exchange Online issue with DNS check

http://social.technet.microsoft.com/Forums/exchange/en-US/newthread?category=microsoftonlineservices&forum=onlineservicesexchange
I'm troubleshooting extremely late (3+ days) delivery emails FROM a domain hosted by Microsoft TO systemid.com. Microsoft Remote connectivity analyzer
https://testconnectivity.microsoft.com/ shows that it cannot get MX record for systemid.com. HOWEVER, other tools like Mxtoolbox (http://mxtoolbox.com/) shows the
MX lookup is successful.
When sending FROM Google / Yahoo to the same email address at systemid.com, the emails go through right away.
I was able to reproduce the issue by sending an email FROM my personal Hotmail email to systemid.com. The next morning I got a delayed Delivery Status Notifcation:
Reporting-MTA: dns;BAY004-OMC1S14.hotmail.com
Received-From-MTA: dns;BAY169-W65
Arrival-Date: Tue, 30 Sep 2014 11:38:10 -0700
Final-Recipient: rfc822;[email protected]
Action: delayed
Status: 4.4.7
Will-Retry-Until: Thu, 2 Oct 2014 11:38:17 -0700
I think the root issue is that Exchange Online does not like something about MX record for systemid.com, although other tools say the MX records are fine.
Can you see why emails from Hotmail or one of your Exchange Online customers cannot reach systemid.com although emails from Google / Yahoo go in just fine? Please PM me if you need the name of the domain hosted by Microsoft or an email address at systemid.com
for testing.

If you open a service request via your O365 tenant, and explain the issue, they'll respond quite quickly.
I've created some tickets at O365 support for about the same problems in the past, and you usually get a call from an EOP/EO engineer the day after.

[Exchange-Online][EWS][Android]Is it possible to reach Exchange room resource mailbox through Office 365 API for Java/Android

Hi guys,
Title covers largely what I'm trying to do. I'm trying to create an app in Android Studio that uses the Office365 for Android API (https://github.com/OfficeDev/O365-Android-Start).
In this app i want to bind calander events to Locations that i create in Exchange online. Is this possible? If so, how? Have not been succesful in finding in any information on the issue so far.
At the moment when the user wants to create an event, the user just types in the "location", but this is just a string and not bound to anything. I would prefer to get a dropdown of all the room resources I have on Exchange and that this will make
that the location. This to prevent 2 seperate meetings happening in the same room at the same time.
(Was sent here from the O365-forums, so sorry if this is a misplaced post)
Thanks for any and all help.
Mathias

So then I'm guessing you want to be able to retrieve the list of resources in the address book? If the Exchange admins have configured room lists, you could use those:
https://msdn.microsoft.com/EN-US/library/office/dn643730(v=exchg.150).aspx.

Exchange Online mailbox Deletion check

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