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Dynamics 365 Community / Forums / Microsoft Dynamics CRM (Archived) / Mailbox Synchronizatio...
Microsoft Dynamics CRM (Archived)

Mailbox Synchronization Issue

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Posted on by Ali .NET

Hello,

Today when we were not able to get emails in Dynamics 365 (CRM) for the mailbox that were already working when we left the workplace last Friday. I just went and checked the mailbox for any errors and there were following errors:

Email cannot be received for the mailbox <mailbox>. Make sure that the credentials specified in the mailbox are correct and have sufficient permissions for receiving email. Then, enable the mailbox for email processing.

Email Server Error Code: Http server returned 401 Unauthorized exception.

We checked and everything was fine. Nothing was changed. I also tried to test and enable mailboxes in one of my trial instance but failed with the same above error.
I wonder if this is something broken on Microsoft servers' side? Do any other users experiencing the same problem today?

*This post is locked for comments

  • Verified answer
    Ali .NET Profile Picture
    Ali .NET on at
    RE: Mailbox Synchronization Issue

    This was due to "Exchange integration failures" on Microsoft Dynamics' server side. The issue had got resolved couple of hours ago.

  • BritB Profile Picture
    BritB on at
    RE: Mailbox Synchronization Issue

    We are having issues too. Everything was working Friday but today, all mailboxes are "with coninuous errors and need your attention" messages on server-side sync monitoring.

    2-Messages on each user

    By enabling this command, you consent to share your data with an external system. Data imported from external systems into Microsoft Dynamics 365 are subject to our privacy statement that can be accessed here. Please consult the feature technical documentation for more information.
    Email won't be processed for this mailbox until the email address of the mailbox is approved by an Office 365 administrator. For more information, contact your system administrator.

    NOTE: I have approved emails and run test & enable but they are all failing.

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