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Intermittent outbound mail flow issue with Exchange 2013 Server "EXCH201301 in HyperV Virtual Environment

    Question

  • Hello guys,

    Exchange Server 2013 Standard

    When issues happens all users are unable to send emails, its stuck in outbox for all users.No issues while receiving emails from internet.

    What's going on? Thanks for any help.
    Wednesday, March 28, 2018 2:45 PM

Answers

  • Hi,

    Thanks for contacting our forum.

    From your description, it's a random issue, please check as the steps below:

    1.Any NDR messages, if exist, please post out in detail;

    2.Make sure the all the Exchange server service are running correctly, especially, the transport service;

    3.Check the SMTP log to see if any clues included and post out, for example the certificate errors;

    4. Make sure the middle devices between your Exchange server and internet were configured correctly;

    5. Check the event log to see if any back pressure events related and make sure your RAM is enough for the mail flow loads.

    Hope it helps.


    Best Regards,
    Jason Chao


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.


    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

    • Marked as answer by tasmania77 Thursday, March 29, 2018 1:42 PM
    Thursday, March 29, 2018 6:43 AM
    Moderator

All replies

  • What update rollup are you running?

    Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."
    Celebrating 20 years of providing Exchange peer support!

    Wednesday, March 28, 2018 10:36 PM
    Moderator
  • Hi,

    Thanks for contacting our forum.

    From your description, it's a random issue, please check as the steps below:

    1.Any NDR messages, if exist, please post out in detail;

    2.Make sure the all the Exchange server service are running correctly, especially, the transport service;

    3.Check the SMTP log to see if any clues included and post out, for example the certificate errors;

    4. Make sure the middle devices between your Exchange server and internet were configured correctly;

    5. Check the event log to see if any back pressure events related and make sure your RAM is enough for the mail flow loads.

    Hope it helps.


    Best Regards,
    Jason Chao


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.


    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

    • Marked as answer by tasmania77 Thursday, March 29, 2018 1:42 PM
    Thursday, March 29, 2018 6:43 AM
    Moderator
  • THanks for your detailed steps Jason!
    Thursday, March 29, 2018 1:43 PM