- Active Directory, Exchange 2007, Exchange 2010, Exchange Management Shell, Exchange Online, Exchange Tools, Microsoft Exchange, Office 365
Error due to mismatch of GUID: Recipient “NameOfRecipient” has mismatched Archive GUID
You receive the error “Recipient “NameOfRecipient” has mismatched Archive GUID” when you try and off board a mailbox from Exchange Online to on premises Exchange. Follow the below steps o resolve the issue and migrate the mailbox back to the on premises Exchange environment: Logon to Exchange Online using Powershell. Run: get-mailbox user | fl *archiveguid* Make a note of the GUID Open Exchange Management Shell on premises Run: Get-RemoteMailbox User | fl *archiveguid* You should see that the GUID on prem is different to the GUID from Exchange Online To resolve, in Exchange Management Shell on prem run: Set-RemoteMailbox User -ArchiveGuid “GUID you got from Exchange Online” The above should work without…
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There is currently no route to the distribution group expansion server
You see the error “There is currently no route to the distribution group expansion server” in a stuck message from your Exchange Hub Transport server submission queue. To resolve this: Make note of the distribution group in the recipient information tab. Search for the Distribution Group in Exchange Management Console Right click on the group and choose properties Go to the Advanced tab Untick the box next to “Set expansion server” You might have to restart the Hub Transport or SMTP service depending on your Exchange version. We found this happened because the Expansion server was removed from the environment and not accessible. Another cause could also be the deletion…
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Find a duplicate e-mail address in Active Directory
We recently started seeing a lot of mails stuck in the submission queues and found that there were a few duplicate e-mail addresses in the environment. Most of the time we could not find the duplicate addresses in Exchange and had to search for the duplicates in Active Directory as some addresses were bound to AD objects. To search for a duplicate address do the following: Open Active Directory Users and Computers Right click on your domain name and click on find Next to find choose custom search (see below screen shot) Then click on the Advanced tab (see below screen shot) Under “Enter LDAP query:” type the next search…
