Barracuda Message Archiver
Why are messages forwarded from my Barracuda Message Archiver getting de-duplicated on my Exchange server?
Scope:
Applies to all Barracuda Message Archivers.
Answer:
Messages forwarded from the Barracuda Message Archiver sent to a Microsoft Exchange server may be getting de-duplicated. This is due to Microsoft's method of managing de-duplication on the Message ID header. For more information on how Microsoft Exchange may be de-duplicating your mail, please follow the following link:
http://msexchangeteam.com/archive/2004/07/14/183132.aspx
Link to this page:
https://campus.barracuda.com/solution/50160000000IHJqAAO