My emails are not synching with exchange. They haven't updated for a week.

Question

I am a single user in a company account. The company doesn't have any other users. It has an admin account and mine. How can I reset exchange to start synching my emails? I have authority to login as admin. It stopped synching on 29th January.

Answer 1

Hi @Tom S 

Thanks for reaching out to the Microsoft Q&A forum.   

To better understand your situation and provide accurate assistance, may I clarify the following details: 

1/ When you mention using Exchange, are you referring to Exchange Online (Microsoft 365 subscription) or Exchange Server on-premises? 

For Exchange Online, the Exchange Management Shell is not available, but you can connect using the Exchange Online PowerShell module. You may refer to Connect to Exchange Online PowerShell | Microsoft Learn 

For Exchange Server, you can open the Exchange Management Shell by going to Start > Microsoft Exchange Server >Exchange Management Shell. For more information, you may refer to: Open the Exchange Management Shell | Microsoft Learn 

 

 

2/ When you say the emails stopped syncing, are you unable to receive emails, send emails, or both?  If so, do you see any error messages or receive any bounce‑back notifications when trying to send or receive messages? 

3/ Is the syncing issue occurring in both Outlook on the web and the Outlook desktop app, or only on a specific platform? 

Please know that while our initial response might not resolve the issue right away, your input is incredibly valuable. With a bit more detail, we’ll work together to find the best solution for you. 

Thank you for your patience and understanding. I would greatly appreciate any updates or additional information you can share. 

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Answer 2

To resolve the issue of your emails not syncing with Exchange, you can follow these troubleshooting steps:

1. Check Device Access Rules: Ensure that your device is not blocked from synchronizing with the mailbox. You can check this by running the following PowerShell command in the Exchange Management Shell:

      Get-CASMailbox user | fl ActiveSyncBlockedDeviceIDs
   

   If your device ID is listed, you will need to remove it from the block list using:

      Set-CASMailbox user -ActiveSyncBlockedDeviceIDs $null
   

2. Verify Active Directory Permissions: Since you have admin access, check if the user object permissions are preventing connectivity. Open Active Directory Users and Computers, enable Advanced Features, and ensure that the option Include inheritable permissions from this object's parent is enabled for your user account.
3. Check for Missing Email Items: If some emails are missing, it may be due to the server not responding correctly to synchronization commands. You can disable and then re-enable email synchronization on your ActiveSync client to see if this resolves the issue.
4. Consider Recreating the Mailbox: If the above steps do not resolve the issue, you might need to recreate the mailbox. This involves exporting the contents to a .pst file, renaming the existing mailbox, and creating a new user account to replace it. Follow the detailed steps in the Microsoft documentation for this process.

By following these steps, you should be able to troubleshoot and resolve the syncing issue with your Exchange mailbox.

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References:

• Troubleshoot ActiveSync with Exchange Server
• Email items are missing on an Exchange Server ActiveSync client