550 5.7.53 SMTP; Command not authorized in current state

Question

Getting the above error after moving a mailbox from one database to another. This error only appears when trying to release messages that appear in the mailbox configured for content filtering in Exchange 2016. Spend 5 hours on the phone with Dell and couldnt figure it out. When googling it, only found one article about it, but it really didnt explain how to fix the issue. We have a on prem exchange server (2016) running on Server 2012 R2. Any help anyone can provide would be greatly appreciated.

Answer 1

Nevermind on this one.. Found the answer. I hope this helps someone down the road as it did me. I was ready to pull my hair out on this one:

Message forwarding stops if the Exchange Server computer account is in the "ExchangeLegacyInterop" group. This group has a denial right on "Accept Organization Headers", as soon as the computer account was removed from this group, the forwarding of messages by rule worked again.
Thank you all for your help.

Best regards

Michael Stiefmayer

I also selected enable inheritance on the server's AD account to be on the safe side.. The mail didnt start going through till after a restart of the server.

Answer 2

Hi @Dax Peters McClellan ,
Thanks for your feedback above which shared more information and glad to know that your issue is resolved now! Since our forum has the policy that The question author cannot accept their own answer. They can only accept answers by others, and according to the scenario introduced here: Answering your own questions on Microsoft Q&A

I would make a brief summary of this post so that other forum members could easily find useful information here:

[550 5.7.53 SMTP; Command not authorized in current state- Summary]

Issue Symptom:
Getting the error “ 550 5.7.53 SMTP; Command not authorized in current state “ after moving a mailbox from one database to another. This error only appears when trying to release messages that appear in the mailbox configured for content filtering in Exchange 2016.

Solution:
Message forwarding stops if the Exchange Server computer account is in the "ExchangeLegacyInterop" group. This group has a denial right on "Accept Organization Headers", as soon as the computer account was removed from this group, the forwarding of messages by rule worked again.

You could "Accept Answer" for this summary to close this thread, and your action would be helpful to other users who encounter the same issue and read this thread. Thanks for your understanding!

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