Outlook 2010 (32) and Exchange 2010 (sp3) sender info not displaying in Outlook

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Digitally Hip

New Member
Outlook version
Outlook 2013 32 bit
Email Account
Exchange Server
I have a 75 user three terminal server (Windows Server 2003 R2, fully patched) network that connects to an Exchange 2010 SP3, rollup 6 server for email. Everyone is running Outlook 2010 (fully patched) and the problem exists only with internal senders.

The problem is that occasionally (10-15 times/day) when an internal message is opened by the recipient, the sender's info is not displayed and clicking on Reply or Reply to all results in a Reply message being created with a blank recipient. However, the sender's info is in the message headers!

I have googled and tested and poked, but cannot find anything relevant, and can't see any sort of a pattern.

Any clues would be GREATLY appreciated.

Forum Admin

Senior Member
I've seen this with imported EML files but not with messages that are sent to the server and downloaded by outlook.
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