We have the problem, that every time when a user will accept a meeting in Outlook he will become an undelivered message from our exchange server that the system has failed to send the mail to the own user.
More then one user are affected from this error.
When the user accept the meeting on OWA, then it works.
Our environment: Exchange 2013 CU9 / Outlook 2013
The user becomes following error mail:
Delivery has failed to these recipients or groups:
<own mail address>
The email system had a problem processing this message. It won't try to deliver this message again.
Diagnostic information for administrators:
Generating server: <Exchange Server>
<Own mail address>
Remote Server returned '554 5.6.0 STOREDRV.Submit.Exception:TextConvertersException; Failed to process message due to a permanent exception with message data truncated TextConvertersException: data truncated'
Thanks a lot for your help.