I recently updated to RU31 and I’m guessing it can be a bug in this rollup or something went wrong but after several reboots this issue has not cropped up again. Archived Forums > Exchange Server Development. You are welcome to come and post questions and comments about your experience with this software. Server returned '400 4.4.7 message delayed' when send to office 365. What this does is go and look at my Exchange Server EX2010A and with a filter go and remove anything from that is in a retry status.Īfter the above was run, Exchange was happy again. This forum provides a place for you to discuss the Exchange 2010. The failure was replaced by a retry response because the message was marked for retry if rejected.Īs this is a lab, I used the following script to easily remove them from the queue, here is the script: Get-Message -Server EX2010A -Filter | Remove-Message Last Error: 400 4.4.7 The server responded with: 550 5.6.0 M2MCVT.StorageError storage error in content conversion. Here is the error that was in the queue viewer:

Most email is flowing back and forth without a problem except for these two.

All of them were for accepted and declined meeting invites and nothing else and all of them for journaling only. If this issue is true for more than (lets say) 10 of your mails then you have problems with DNS resolution, your internal firewall or other.5 answers Top answer: There are many possibilities that are involved with this error. Exchange 2010 Queue 400 4.4.7 Message Delayed to Some Domains Posted by Michael Topper on May 25th, 2012 at 4:24 AM Solved Microsoft Exchange So in Exchange 2010 I notice in our mail queue there are a couple of domains stuck right now. In my Exchange 2010 lab, I came across a handful of messages in the submission queue. is in progress when a Restore is requested, the Restore operation will be delayed.

400 4.4.7 message delayed exchange 2010