locked
we got the error in our queue viewer in exchange 2016 RRS feed

  • Question

  • we got LED last error code are below please help me to resolved this

    these error code .

    451 4.4.395
    451 4.4.395
    450 4.4.318

    Tuesday, December 4, 2018 6:56 AM

All replies

  • It may occure because of problem with dns name resolving. Try to use any other dns servers. Note: exchange servers must have access to this dns servers via 53 port (tcp/udp).

    read https://support.microsoft.com/en-us/help/3038746/451-4-4-0-dns-query-failed-exchange-server-error-in-message-queue

    Tuesday, December 4, 2018 8:20 AM
  • Hi,

    Helpful information from Egor. Besides, since 450 4.4.318 can be related to the message size limit of firewall, please check if the message size or header size exceeds the settings in your firewall. I encountered a similar issue that was resolved by increase the header size limit in firewall. You can try the method mentioned in the following thread and see if it helps.

    450 4.4.318 Connection was closed abruptly (SuspiciousRemoteServerError)

    Please note: Since the website is not hosted by Microsoft, the link may change without notice. Microsoft does not guarantee the accuracy of this information. And the changes made in the above blog is not supported officially by Microsoft.


    Regards,

    Dawn Zhou


    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.

    • Proposed as answer by Dawn Zhou Monday, December 10, 2018 5:45 AM
    Wednesday, December 5, 2018 7:49 AM
  • Hi,

     

    How is everything going? If there is anything unclear or any update, please feel free to post it here. If you have solved the issue, please mark the solution as answer, which could be beneficial for answer searching in the forum.

     

    Thanks for your understanding.

    Regards,

    Dawn Zhou


    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.

    Monday, December 17, 2018 10:14 AM