Comments on: Event ID 9041, An exception has been thrown: Microsoft Exchange Assistants TransientMailboxException https://practical365.com/event-id-9041-an-exception-has-been-thrown-microsoft-exchange-assistants-transient-mailbox-exception/ Practical Office 365 News, Tips, and Tutorials Wed, 07 Feb 2018 17:27:43 +0000 hourly 1 https://wordpress.org/?v=6.6.1 By: Jeremy https://practical365.com/event-id-9041-an-exception-has-been-thrown-microsoft-exchange-assistants-transient-mailbox-exception/#comment-157249 Wed, 07 Feb 2018 17:27:43 +0000 https://www.practical365.com/?p=13292#comment-157249 Just ran into this! Running 2016 CU8 and coexistence with Exchange 2010. Any mail flow to/from the 2016 server wasn’t working. Interesting how the primary DNS server (internal DC) being up and available doesn’t help matters. Just having the secondary DNS populated, in this case with a public DNS server’s IP, caused the issue.

It would be interesting to know if it is that both primary and secondary DNS need to be AD-integrated (or both not), or what.

Thanks for having the easy fix published!

]]> By: Tony https://practical365.com/event-id-9041-an-exception-has-been-thrown-microsoft-exchange-assistants-transient-mailbox-exception/#comment-23462 Fri, 23 Sep 2016 17:19:24 +0000 https://www.practical365.com/?p=13292#comment-23462 Ran into this on a new lab system. You saved me some head scratching. Thanks for sharing.

]]> By: Mike https://practical365.com/event-id-9041-an-exception-has-been-thrown-microsoft-exchange-assistants-transient-mailbox-exception/#comment-23461 Thu, 11 Aug 2016 16:22:59 +0000 https://www.practical365.com/?p=13292#comment-23461 Nice one! I had this issue. Weird how secondary DNS would prevent emails being submitted.

]]> By: David Conger https://practical365.com/event-id-9041-an-exception-has-been-thrown-microsoft-exchange-assistants-transient-mailbox-exception/#comment-23460 Fri, 20 May 2016 07:42:06 +0000 https://www.practical365.com/?p=13292#comment-23460 I had this and many other issues, and then I saw this:

https://blogs.technet.microsoft.com/exchange/2016/02/10/on-net-framework-4-6-1-and-exchange-compatibility/

I just thought I’d let you know

]]> By: Hesan https://practical365.com/event-id-9041-an-exception-has-been-thrown-microsoft-exchange-assistants-transient-mailbox-exception/#comment-23459 Wed, 27 Apr 2016 00:14:21 +0000 https://www.practical365.com/?p=13292#comment-23459 Hello Paul,
I also checked my DNS settings and everything is fine. Still the MSExchange Transport service wont start and i am continously getting these warnings of 9041.

]]> By: sajid https://practical365.com/event-id-9041-an-exception-has-been-thrown-microsoft-exchange-assistants-transient-mailbox-exception/#comment-23458 Fri, 12 Feb 2016 13:18:03 +0000 https://www.practical365.com/?p=13292#comment-23458 Hi,
i dismount the db and mount it again, and it fix the issue.
Regards

]]> By: Ronald Graham https://practical365.com/event-id-9041-an-exception-has-been-thrown-microsoft-exchange-assistants-transient-mailbox-exception/#comment-23457 Fri, 05 Feb 2016 20:07:00 +0000 https://www.practical365.com/?p=13292#comment-23457 I am having the same issues and errors but my DNS is good. I have been fighting with this for a month now. the issue comes and goes with no changes to DNS. A restart usually fixes the issue but I can’t always restart he server everything I have this issue popup. I think it may be a bug in 2016.

]]> By: Ramy Othman https://practical365.com/event-id-9041-an-exception-has-been-thrown-microsoft-exchange-assistants-transient-mailbox-exception/#comment-23456 Sat, 30 Jan 2016 18:27:17 +0000 https://www.practical365.com/?p=13292#comment-23456 Dear paul,,

i have same Error with my Server Exchange 2016 also ,, and dont use Router DNS ,,
i make , Restart for all Exchange Services , and restart Server,, Restart DC and ADD server ,, and nothing happen -_-

i dont know why this problem happen ??

i also try to Delete all VM ,, and build lap again ,, and after i changed Virtual Directory with Certification from Internal CA ,,

that Error happen again -_0

!!

]]> By: Phil Goldwasser https://practical365.com/event-id-9041-an-exception-has-been-thrown-microsoft-exchange-assistants-transient-mailbox-exception/#comment-23455 Thu, 21 Jan 2016 14:05:35 +0000 https://www.practical365.com/?p=13292#comment-23455 Hi Paul, this is almost exactly the problem I had written to you about. you responded to check DNS and the event logs, so I went into the event viewer and found this error. The only difference is that I get PRX4 at the end of the “temporary server error” message and not PRX2. I double checked DNS and it is set correctly. I have one DNS server and all three Exchange 2016 servers have that DNS set for the single adapter that I am using on each server. Any other adapter on the servers are disabled. Right now two of my servers are throwing this error, while one is not. I am about to start going live, and I cannot do that until this is cleared up.

]]> By: <div class="apbct-real-user-wrapper"> <div class="apbct-real-user-author-name">Paul Cunningham</div> <div class="apbct-real-user-badge" onmouseover=" let popup = document.getElementById('apbct_trp_comment_id_23454'); popup.style.display = 'inline-flex'; "> <div class="apbct-real-user-popup" id="apbct_trp_comment_id_23454"> <div class="apbct-real-user-title"> <p class="apbct-real-user-popup-header">The Real Person!</p> <p class="apbct-real-user-popup-text">Author <b>Paul Cunningham</b> acts as a real person and passed all tests against spambots. Anti-Spam by CleanTalk.</p> </div> </div> </div> </div> https://practical365.com/event-id-9041-an-exception-has-been-thrown-microsoft-exchange-assistants-transient-mailbox-exception/#comment-23454 Tue, 12 Jan 2016 22:51:57 +0000 https://www.practical365.com/?p=13292#comment-23454 In reply to Helao.

What would the app do that the site currently doesn’t do?

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