Make Passive Database Copies Active and Decommissioning Exchange 2010 SP2

I am in the middle of tranferring Databases from Old Physical servers to New Mailbox Servers.
My approach was to join the new servers to DAG replicate all Databases,After which I will make the Database Copies in the New Servers Active with high Preference and Decommission the old.Servers.
I however dont know how to go about it ?

Well, you just did describe it!
You dont need to change the activation preference though. Once the old databases are removed, Exchange will set the preference automatically and then you can adjust as necessary.
Here is what I would do:
1. Add the mailbox servers to the DAG.
2. Replicate to the new servers.
3. Activate databases on servers not being removed.
4. Remove the database copies on the servers you are removing. (http://technet.microsoft.com/en-us/library/dd298164.aspx )
5. Remove the servers from the DAG that no longer have database replicas.
Thats it! Very simple.
Note that the all the DAG members have to be at the same O/S and should be at the same Exchange SP.
(SP2 is no longer supported - Time to move to 2010 SP3)
Twitter!: Please Note: My Posts are provided “AS IS” without warranty of any kind, either expressed or implied.

Similar Messages

EMC Does Not Show All Databases Copies Information on DAG - Exchange 2010 SP2

Hi guys,
Really need your help here, suddenly my customer complain that they cant see any information on database copies on their Active Copy DAG Exchange server, for another DAG members, the database copies information is visible. After do some readings, I found
this related to Exchange 2010 SP1 known issue.
http://workinghardinit.wordpress.com/2010/09/13/emc-does-not-show-all-database-copies-after-upgrade-to-exchange-2010-sp1-still-investigating/
But, for my environment, there is Exchange 2010 SP2. I have no idea on this issue since there is no error log thrown out from the event viewer. I already try to restart the server itself and the Microsoft Information services but no luck.

Hi,
Based on the description, your customers could see passive database copy information, but they couldn’t view the detail information such as state: Healthy in EMC.
When did this issue begin?
Please restart the AD topology service to check result.
Since we have the information correctly on Exchange shell, please try to clear EMC cache and then open console to check if you can see database copy in EMC.
Best regards,
If you have feedback for TechNet Subscriber Support, contact
[email protected]
Belinda Ma
TechNet Community Support

Exchange 2010 SP2 RU2 - Client Issues

Hi,
I'm using Exchange 2010 SP2 RU2, Clinet Using Microsoft Office Professional Plus 2010,
facing some problem at some client side,
Problem 1. Unable to Create Subfolder in outlook and OWA
              2. User able to sent mail but its showing in both folder Outbox and Sent Item
              3. If recipient decline and propose new time for meeting, organizer unable to see new proposed time,
                  he has to reopen mail again then new time sync.
Action Taken 1. Create new Profile
                     2. Checked in OWA
                     3. Change the PC
                     4. Repair the MailBox
                     5. Moved the Mailbox to different DataBase
                     6. Permissions are ok ..etc....
Looking for Solution with reasons,
Thanks in Advance.
Hassan
Hassan Technet

Exactly. Break this down into discrete items.
Also what build of Outlook? Is that patched?
http://blogs.technet.com/b/rmilne/archive/2013/07/18/patching-exchange-don-t-overlook-outlook.aspx
And While Exchange 2010 SP2 is supported, you are well behind where I would like to see you. For a start you are missing several security updates in Exchange that can only be resolved by installing a newer RU
http://blogs.technet.com/b/rmilne/archive/2013/12/10/exchange-security-update-available-for-ms13-105.aspx
Cheers,
Rhoderick
Microsoft Senior Exchange PFE
Blog:
http://blogs.technet.com/rmilne
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Note: Posts are provided “AS IS” without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability and/or fitness for a particular purpose.

Exchange 2010 SP2 : Move calander entries and Task items from Archive mailbox to current active mailbox.

Hi,
After upgrade the exchange 2010 SP1 to SP2, all users calendar and task items entries also moved to archive mailbox from user's active mailboxes.
We like to move 90 days older emails to archive mailbox but not calendar & task items to be moved.
Any solution to move back those older archive calendar and task items to active mailbox users and also any settings to stop further to move calendar & task items to archive mailbox in SP2?
Thanks
MD

Hi,
Exchange 2010 SP2 RU4 added support for Calendar and Task Retiontion polices. For more information about that see the below blog post which also includes a workaround if you don't what these folders to be processed by MRM.
Calendar and Tasks Retention Tag Support in Exchange 2010 SP2 RU4
http://blogs.technet.com/b/exchange/archive/2012/08/14/calendar-and-tasks-retention-tag-support-in-exchange-2010-sp2-ru4.aspx
PS. Exchange 2010 SP2 is no longer supported.
Martina Miskovic

Decommissioning Exchange 2010 Casarray (contains 2013 Mailbox Servers?)

I'm in the process of decommissioning exchange 2010. I went to remove the 2010 casarray and see that my 2013 mailbox servers are a part of the array? Can I still remove the array? Do I leave it?

Hi,
Please have a look in to the below mentioned article especially the reply from Off2work
http://social.technet.microsoft.com/Forums/office/en-US/c10550fa-b735-48ee-ad52-a75f0176e1de/cas-array-in-exchange-2013?forum=exchangesvrdeploy
As an additional info , as per my knowledge there is no use of cas array in exchange 2013 and at the same time exchange 2013 servers will not make use of it even though if it is an member of an casarray in exchange 2010.
Please reply me if you have any queries .
Regards
S.Nithyanandham
Thanks S.Nithyanandham

Integration b/w Exchange 2010 SP2 and Exchange 9.1.1.7 connector

Has any succesfully integrated exchange 2010 sp2 with 9.1.1.7 conncetor ..
Sp2 is not in the certifcation list in the connector documentation .. just want to check if any one has done this before ..
Thanks

Hi Sembee,
We did this already.
We got it working now after doing above but with the shell.
First we confirmed if the mailbox is disabled with the following command: Get-MailboxStatistics -Database MBD01 | Where { $_.DisconnectReason -eq "Disabled" } | Format-List LegacyDN, DisplayName, MailboxGUID, DisconnectReason
It did show as disabled but when we try to enable it we got the following: This task does not support recipients of this type.
So we disabled the mailbox in the shell, enable it again and it was fine.
Get-MailboxStatistics -Database MBD01 | Where { $_.DisconnectReason -eq "Disabled" } | Format-List LegacyDN, DisplayName, MailboxGUID, DisconnectReason helped us, cause in the EMC exchange showed the user as enabled.
Thanks

Exchange 2010 SP2 : Log Sequence Missing...

Hi Friends,
Recently we configure EMC Networker backup in our environment. but somehow it's not running incremental backup. when we send logs to EMC they reply some log sequence is missing. how i can fix this issue. can anyone help me.
I am using Exchange 2010 SP2
DAG Environment
Two Hubcas Server with two seprate Mailbox servers (Active and Passive)
Few logs are below...
18/05/2014 16:01:40
Mailbox.domain.local nsrsnap_vss_save NMM .. Possible loss of log data. For database DB-2GB-1, the current log file on disk is E01000D779E.log -- 882590. Previous log file backed up was E01000D6B22.log -- 879394.
Mailbox.domain.local nsrsnap_vss_save NMM .. Log file gap detected from previous backup to current for APPLICATIONS:\Microsoft Exchange 2010. Promoting this saveset to FULL.
Mailbox.domain.local nsrsnap_vss_save Save set name APPLICATIONS:\Microsoft Exchange 2010 is valid.
19/05/2014 16:01:18
Mailbox.domain.local nsrsnap_vss_save NMM .. Possible loss of log data. For database DB-2GB-1, the current log file on disk is E01000D8741.log -- 886593. Previous log file backed up was E01000D78AD.log -- 882861.
Mailbox.domain.local nsrsnap_vss_save NMM .. Log file gap detected from previous backup to current for APPLICATIONS:\Microsoft Exchange 2010. Promoting this saveset to FULL.
Mailbox.domain.local nsrsnap_vss_save Save set name APPLICATIONS:\Microsoft Exchange 2010 is valid.

Hi,
Please make sure the Microsoft Exchange Server Extension for Windows Server Backup service running fine.
Please also try to collect some App log for the further troubleshooting.
Thanks
Mavis
Mavis Huang
TechNet Community Support

Exchange 2010 Sp2 - Does not audit Shared calender access

I have Exchange 2010 sp2 , I have enabled mailbox audit on few mailbox , as well as MSExchange IS logs for logon event to expert.(event ID 1016),
I am trying to get folderbind events , from shared calender access , like Non-owner mailbox event or anything that I can run audit get the detail if non-owner accessed the calender or mailbox folder etc..
I found changes are logged like create , delete or any changes but not folderbind
i have following on to few mailboxes.
AuditEnabled : True
AuditLogAgeLimit : 90.00:00:00
AuditAdmin : {Update, Move, MoveToDeletedItems, SoftDelete, HardDelete, FolderBind, SendAs, SendOnBehalf, Create}
AuditDelegate : {Update, Move, MoveToDeletedItems, SoftDelete, HardDelete, FolderBind, SendAs, SendOnBehalf, Create}
AuditOwner : {Update, Move, MoveToDeletedItems, SoftDelete, HardDelete, Create}
Can some one please help me to find what is missing to get folderbind audit events when any non-owner access anything like shared calender etc..
Thank you

Hi ANdy,
Yes we have the followed the same commands as mentioned in both the article and the PPT as well. But i got the errors as mentioned in my thread above.
Databases were not getting mounted, even when i tried the resume command still it failed.
regards
abubakar
Md.Abubakar Noorani IT Systems Engineer Serco Ltd.
Ok, because that is the part I wasnt clear about. I assume that the servers in the DR site are not set for automatic activation, so in order for them to mount, you would have to clear that block.
When you tried to move the databases to the DR site, you got the same error message as you got when you ran the restore-databaseavailibilitygroup command?
So, is everything back to normal? Did you run test-replicationhealth before you failed over?
Also, anything of use in the cluster logs? “cluster log /g”.
I assume the MAPI bindings and NICS are set correctly since this worked before.
Twitter!:

Exchange 2010 SP2 Upgradation in DR site

Hi All,
I am planning upgrade exchange 2010 SP2 from SP1in DR servers which is in different site of AD.
I have already run the prepare schema and prepare ad in schema master which is in production site and it got replicated in DR Domain controllers.
But, still i am not able to upgrade the server. The error says,
:\Exch SP2>Setup /m:upgrade /InstallWindowsComponents /Hosting
Welcome to Microsoft Exchange Server 2010 Unattended Setup
Preparing Exchange Setup
    Copying Setup Files                           COMPLETED
The following server roles will be upgraded
Languages
Hub Transport Role
Client Access Role
Management Tools
Performing Microsoft Exchange Server Prerequisite Check
    Configuring Prerequisites                                 COMPLETED
    Organization Checks
FAILED
     Setup needs to contact the Active Directory schema master but this computer
is not in the same Active Directory site as the schema master (Default-First-Si
te-Name).
     Setup encountered a problem while validating the state of Active Directory:
Exchange organization-level objects have been created but have not yet replicat
ed to the local domain. Wait for replication to complete and then run setup aga
in.
    Language Pack Checks
COMPLETED
    Hub Transport Role Checks                                 FAILED
     Setup encountered a problem while validating the state of Active Directory:
Exchange organization-level objects have been created but have not yet replicat
ed to the local domain. Wait for replication to complete and then run setup aga
in.
    Client Access Role Checks                                 FAILED
     Setup encountered a problem while validating the state of Active Directory:
Exchange organization-level objects have been created but have not yet replicat
ed to the local domain. Wait for replication to complete and then run setup aga
in.
The Exchange Server setup operation didn't complete. More details can be found
in ExchangeSetup.log located in the <SystemDrive>:\ExchangeSetupLogs folder.
Exchange Server setup encountered an error.
Please let me know if you have options

Hi All,
I am planning upgrade exchange 2010 SP2 from SP1in DR servers which is in different site of AD.
I have already run the prepare schema and prepare ad in schema master which is in production site and it got replicated in DR Domain controllers.
But, still i am not able to upgrade the server. The error says,
:\Exch SP2>Setup /m:upgrade /InstallWindowsComponents /Hosting
Hi,
If you run Get-OrganizationConfig | fl Name,objectversion in your DR-Site, what is the version number you see?
If its not 14247, the schema has not been upgraded.
/Hosting is not supported with SP2, so you need to leave that out.
It might be better if you post in the forum
Exchange 2010 for Hosters
Some additional reading:
Future of /Hosting Mode
Martina Miskovic

Upgrade Exchange 2010 SP2 to SP3 getting fail

Hi,
I am trying to upgrade from exchange 2010 SP2 to SP3, but it getting failed.
I have already run the prepare schema, prepare and domain prep in all domains and it got replicated in DR Domain controllers.
But, still i am not able to upgrade the server. The error says,
Preparing Exchange Setup
    Copying Setup Files                           COMPLETED
The following server roles will be upgraded
Languages
Hub Transport Role
Client Access Role
Management Tools
Performing Microsoft Exchange Server Prerequisite Check
    Configuring Prerequisites                                 COMPLETED
    Organization Checks
FAILED
     Setup needs to contact the Active Directory schema master but this computer
is not in the same Active Directory site as the schema master (Default-First-Si
te-Name).
     Setup encountered a problem while validating the state of Active Directory:
Exchange organization-level objects have been created but have not yet replicat
ed to the local domain. Wait for replication to complete and then run setup aga
in.
    Language Pack Checks
COMPLETED
    Hub Transport Role Checks                                 FAILED
     Setup encountered a problem while validating the state of Active Directory:
Exchange organization-level objects have been created but have not yet replicat
ed to the local domain. Wait for replication to complete and then run setup aga
in.
    Client Access Role Checks                                 FAILED
     Setup encountered a problem while validating the state of Active Directory:
Exchange organization-level objects have been created but have not yet replicat
ed to the local domain. Wait for replication to complete and then run setup aga
in.
The Exchange Server setup operation didn't complete. More details can be found
in ExchangeSetup.log located in the <SystemDrive>:\ExchangeSetupLogs folder.
Exchange Server setup encountered an error.
Thanks,
San

Hi,
Schema updates should be done on a schema master or on a DC in the same AD site as the schema master. Once extended, the updates will replicated via AD replication. To narrow down the issue, I recommend you check if there is any event related to replication
on domain controller holding schema master role.
Is the schema master role in the same site as the Exchange server which you want to upgrade? If not, you can try to transfer FSMO role to a domain controller which is in the site where you want to install Exchange 2010 SP3 and then upgrade to check the result.
Best regards,
Belinda
Belinda Ma
TechNet Community Support

Cross forest migration Exchange 2010 SP2 to Exchange 2010 SP2

Hi,
We are planning cross forest migration Exchange 2010 SP2 to Exchange 2010 SP2.
Requesting you to please help us out for below scenario.
Source Exchange 2010 SP2:- abc.com
2AD, 2CAS & 2 MBX servers
Database:- 4
Total Users :- 3500
Accepted Domains :- 8
Total Data:- 5TB +
Target Exchange 2010 SP2:- xyz.com
Resource allocated same as above.
Now we have to migrate users along with data to target forest xyz.com keeping both setup live, as moving 5TB + data will be a ongoing process and the same will take some time.
With the guidelines mentioned in
http://careexchange.in/cross-forest-migration-guide-exchange-2010-to-exchange-2010/#comment-14203 we are able to migrate test users along with data, but after migration the migrated user is not able to connect through MS Outlook even not able to login into
OWA. It gives error “The Outlook Web App address
https://mail.abc.com/owa is out of date.”
Kindly let us know how to solve this issue.
Kindly let me know if you want any more information from our end.
Thanks in advance.
Thanks and Regards, Shashank Kudi

Hi Shashank,
Do you have certificates properly installed and configured in the target Exchange?
If not, Please configure certificate and import the certificate to the trusted root CA if you are using internal CA cert.
Thanks, MAS
Please mark as helpful if you find my comment helpful or as an answer if it does answer your question. That will encourage me - and others - to take time out to help you.

SBS2011 (Exchange 2010 SP2) - limiting cache size doesn't appear to work

Hi All,
Hoping for some clarification here, or extra input at least. I know there are other posts about this topic such as
http://social.technet.microsoft.com/Forums/en-US/smallbusinessserver/thread/5acb6e29-13b3-4e70-95d9-1a62fc9304ac but these have been
incorrectly marked as answer in my opinion.
To recap the issue. The Exchange 2010 store.exe process uses a lot of memory. So much in fact it has a negative performance impact on the server (sluggish access to the desktop etc). You can argue about this all day - it's by design
and shouldn't be messed with etc but the bottom line is that it does use too much memory and it does need tweaked. I know this because if you simply restart the Information Store process (or reboot the server) it frees up the memory and the performance
returns (until its cache is fully rebuilt that is). I have verified this on 4 different fresh builds of SBS2011 over the last 6 months. (all on servers with 16GB RAM)
I have scoured the internet for information on limiting how much memory exchange uses to cache the information store and most articles point back to the same two articles (http://eightwone.com/2011/04/06/limiting-exchange-2010-sp1-database-cache/
and
http://eightwone.com/2010/03/25/limiting-exchange-2010-database-cache) that deal with exchange 2010 and exchange 2010 SP1, notably not exchange 2010 SP2. Ergo most articles are out of date since exchange 2010 SP2 has been released since these articles
were posted.
When testing with our own in house SBS2011 server (with exchange 2010 SP2) I have found that specifying the min, max and cache sizes in ADSIEDIT has varying results that are not in line with the results documented in the articles I mentioned above.
I suspect the behaviour of these settings has changed with the release of exchange 2010 SP2 (as it did between the initial release and SP1).
Specifically here's what I have found using ADSIEDIT;
If you set the msExchESEParamCacheSize to a value - it doesn't have any effect.
If you set the msExchESEParamCacheSizeMax to a value - it doesn't have any effect.
If you set the msExchESEParamCacheSizeMin to a value - it always locks the store.exe process to using exactly this value.
I have also tested using combinations of these settings with the result that the size and max size values are always ignored (and the store.exe process uses the maximum available amount of memory - thus causing the performance degradation) but as soon as
you specify the min value it locks it to this value and it doesn't change.
As a temporary solution on our in-house SBS2011 I have set the min value to 4GB and it appears to be running fine (only 15 mailboxes though).
Anyone got some input on this ? thank you for your time.

I concur with Erin. I'm seeing the same behaviour across all SBS2011 boxes, whether running SP1, SP2 or SP3.
If a minimum value is set, the store cache size barely rises above the minumum. I have one server with 32GB RAM. Store.exe was using 20GB of RAM, plus all the other Exchange services which total 4GB+. That left virtually no free RAM and trying to do
anything else on the server was sluggish at best.
All the advise is that setting a maximum alone has no effect and a minimum must be set too. But when set, the store cache size barely rises above the minimum. I have set a 4GB minimum and 16GB max, but 5 days later it's still using only slightly more than
4GB and there's 8GB free. Now the server as a whole is responsive, but doing anything with Exchange is sluggish.
Just saying leave Exchange to manage itself is not an answer. The clue is in the name - Small Business Server. It's not Exchange Only Server - there are other tasks an SBS must handle so leaving Exchange to run rampant is not an option. Besides, there are
allegedly means to manage the Exchange cache size - they just don't apparently work!
I'm guessing nobody has an answer to this so the only solution is to effectively fix the cache size to a sensible value by setting min and max to the same value.
Adam@Regis IT

Silent Install Exchange 2010 SP2 RU7 Management Tools On Windows 7?

We already have Exchange 2010 SP2 RU7 running on a server. We would like to automate deploying the management tools to the Windows 7 workstations of admins that use the console.
Would a batch file with these commands work when run on a Windows 7 SP1 workstation?
dism /online /enable-feature /featurename:IIS-WebServerRole
dism /online /enable-feature /featurename:IIS-WebServerManagementTools
dism /online /enable-feature /featurename:IIS-IIS6ManagementCompatibility
dism /online /enable-feature /featurename:IIS-Metabase
dism /online /enable-feature /featurename:IIS-LegacySnapIn
Setup /r:MT
How can we deploy the management tools to the workstations with SP2 and RU7 already installed so we don't have to do a separate step of installing the service pack and rollup after doing the base install?

Hi,
First, please make sure the Windows 7 version is 64-bit version. When you create a batch file, you should specify the shared Exchange setup file, you can refer to the following thread.
http://social.technet.microsoft.com/Forums/en-US/e3023a7f-dd70-44c5-94c8-528d8eb1a8a1/silent-install-of-exchange-2010-mangement-tools-sp2?forum=mdt
After you have installed Exchange Management Tool on Windows 7, please always ensure you install any Exchange Service Pack which is the same with Exchange server on the PC running EMC.
Best regards,
Belinda
Belinda Ma
TechNet Community Support

Exchange 2010 SP2: Different problems with E_ACCESSDENIED on exchange servers

Hello All,
I'm observing a strange problem in an AD 2008 R2 / Exchange 2010 SP2 environment:
When creating a DAG and adding 1 or more servers to the DAG, the following error occurs:
Summary: 2 item(s). 0 succeeded, 2 failed.
Elapsed time: 00:00:05
<MAILBOX SERVER 1> Failed
Error:
Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))
Exchange Management Shell command attempted:
Add-DatabaseAvailabilityGroupServer -MailboxServer '<MAILBOX SERVER 1>' -Identity '<NAME DAG>'
Elapsed Time: 00:00:02
<MAILBOX SERVER 2> Failed
Error:
Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))
Exchange Management Shell command attempted:
Add-DatabaseAvailabilityGroupServer -MailboxServer '<MAILBOX SERVER 2>' -Identity '<NAME DAG>'
Elapsed Time: 00:00:02
There are no logs created on the Mailservers, so I have no more detailed information. Where to start with troubleshooting this issue?
Edit: BTW I already checked the local admin membership of the "Exchange Trusted Subsystem" domain group.
Also commands like get-owavirtualdirectory give the Access Denied error (except on the CAS servers themselves).
You know you're an engineer when you have no life and can prove it mathematically

Hi Frank,
The DAG is not yet populated. When inserting the first server(s) in the freshly created DAG, the error appeared.
[PS] C:\Program Files\Microsoft\Exchange Server\V14\Scripts>Get-DatabaseAvailabilityGroup
Name             Member Servers
Operational Servers
IICT-DAG-002     {}
[PS] C:\Program Files\Microsoft\Exchange Server\V14\Scripts>Get-DatabaseAvailabilityGroup IICT-DAG-002 -Status | fl
RunspaceId                             : cc985264-fa89-48f8-8aba-c1b0c89eb097
Name                                   : IICT-DAG-002
Servers                                : {}
WitnessServer                          : iict-srvp00-011.insourceict.local
WitnessDirectory                       : C:\IICT-DAG-002
AlternateWitnessServer                 :
AlternateWitnessDirectory              :
NetworkCompression                     : InterSubnetOnly
NetworkEncryption                      : InterSubnetOnly
DatacenterActivationMode               : Off
StoppedMailboxServers                  : {}
StartedMailboxServers                  : {}
DatabaseAvailabilityGroupIpv4Addresses : {10.100.0.54}
DatabaseAvailabilityGroupIpAddresses   : {10.100.0.54}
AllowCrossSiteRpcClientAccess          : False
OperationalServers                     :
PrimaryActiveManager                   :
ServersInMaintenance                   :
ThirdPartyReplication                  : Disabled
ReplicationPort                        : 0
NetworkNames                           : {}
WitnessShareInUse                      :
AdminDisplayName                       :
ExchangeVersion                        : 0.10 (14.0.100.0)
DistinguishedName                      : CN=IICT-DAG-002,CN=Database Availability Groups,CN=Exchange Administrative Gro
                                         up (FYDIBOHF23SPDLT),CN=Administrative
Groups,CN=InsourceICT,CN=Microsoft Exch
                                         ange,CN=Services,CN=Configuration,DC=insourceict,DC=local
Identity                               : IICT-DAG-002
Guid                                   : 71d5d869-03ac-4f8a-8de7-fc15bc6a0ae1
ObjectCategory                         : insourceict.local/Configuration/Schema/ms-Exch-MDB-Availability-Group
ObjectClass                            : {top, msExchMDBAvailabilityGroup}
WhenChanged                            : 8-6-2012 14:35:59
WhenCreated                            : 8-6-2012 13:35:21
WhenChangedUTC                         : 8-6-2012 12:35:59
WhenCreatedUTC                         : 8-6-2012 11:35:21
OrganizationId                         :
OriginatingServer                      : IICT-SRV003.insourceict.local
IsValid                                : True
You know you're an engineer when you have no life and can prove it mathematically

Tracking down the cause of a DuplicateDeliver email (Exchange 2010 SP2 RU8)

I am in the process of tracking down the reason an email is showing DuplicateDeliver in the message tracking logs (and not arriving in the client's mailbox). I have been attempting to search for the original message based upon the message ID or even
the Internal message ID is not producing any results.
The issue stems from an application that will send a batch of 18 emails to a specific mailbox with status messages and attachments. Periodically one of the 18 messages will not make it to the mailbox. I managed to trace the latest missing email through
our MTA, to the receive connector on our hub server (Exchange 2010 SP2 RU8) and finally to the message tracking logs where I see this:
Source : STOREDRIVER
EventId : DUPLICATEDELIVER
I have read threads on attempting to track this down based on the message ID's and have read the EHLO blog post on how/why DuplicateDeliver happens...now I just need to figure out why this application is having this happen periodically.
Any suggestions on how find the missing piece of the puzzle would be greatly appreciated.
Thanks
MT

Hi Ravenmike,
Duplicatedeliver event occurs if the sender domain is send email with the same message ID to exchange server. By default the duplicate detection is set to 1 hour and these event after
generated by store.
For more information about duplicate detection, please check below article on Exchange team blog:
http://blogs.technet.com/b/exchange/archive/2004/07/14/183132.aspx
Do we have additional third party mail server? It maybe the third party mail server which sending multiple email with same message ID to Exchange.
Hope it is helpful
Thanks
Mavis
Mavis Huang
TechNet Community Support

Make Passive Database Copies Active and Decommissioning Exchange 2010 SP2

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