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Dynamics 365 Community / Forums / Customer Service forum / Emails with attachment...
Customer Service forum

Emails with attachments over 1 MB go into Pending Send and then Failed

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Posted on by Community Member

When trying to send emails with attachments over 1 MB go into Pending Send and then Failed.  This is in the 8.2 GOV Cloud version of Dynamics 365 using on-prem Exchange and an impersonator.  All other emails go through without problems even those with attachments less than 1 MB.  Any suggestions on how to resolve? 

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  • Community Member Profile Picture
    Community Member on at
    RE: Emails with attachments over 1 MB go into Pending Send and then Failed

    Opened a Case with MS 2 weeks ago and they are still trying to resolve.  Thanks for the feedback.

  • bac26 Profile Picture
    bac26 2,268 on at
    RE: Emails with attachments over 1 MB go into Pending Send and then Failed

    The logs usually have the answer.  If you cannot share, you might want to work with Microsoft and raise a case.

  • Community Member Profile Picture
    Community Member on at
    RE: Emails with attachments over 1 MB go into Pending Send and then Failed

    Yes, the same emails with the same attachments can be sent directly from Outlook without any problems.  If they aren't queued in Dynamics and sent directly out from a user, they are sent properly too.  Can't share logs, as it is a Gov FedRAMP instance of Dynamics.

  • bac26 Profile Picture
    bac26 2,268 on at
    RE: Emails with attachments over 1 MB go into Pending Send and then Failed

    If you send it straight through Exchange does it work?  Is there a limit on attachments in your Exchange online?     Can you post the log file to let me know what it might say?

  • Community Member Profile Picture
    Community Member on at
    RE: Emails with attachments over 1 MB go into Pending Send and then Failed

    Yes, I increased the default attachment size from 5,120KB to 15,120KB in Dynamics and it made no difference.  Thanks.

  • bac26 Profile Picture
    bac26 2,268 on at
    RE: Emails with attachments over 1 MB go into Pending Send and then Failed

    Did you check your attachment limits in "System Settings" under the email tab?    My guess is that will need to be increased.   

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