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Message Header POP3 and MAPI

Posted on 2011-03-23
Medium Priority
Last Modified: 2012-05-11

I have strange issuer, I have account with Primary email id test@abc.com and Alias as Test1@abc.com.

Ii sent  email to test1@abc.com and checked the Internet message header in MAPI account(Webmail, Outlook) the To filed in the header is test1@abc.com and same email internet header when i checked in POP3 the To filed its primary email id test@abc.com.

Can  any one tell me why the internet header changing in MAPI and POP3 are there any configuration setting need to do correct this.
Question by:Manoj Bojewar
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Accepted Solution

Barthax earned 1000 total points
ID: 35230278
I believe this only happens when the e-mail originates from internally via Outlook/OWA - i.e., via MAPI.  If Exchange receives the message via MAPI, it is not yet an Internet-formatted e-mail and is instead stored according to MS' own internal formats.  Only at POP3 collection does the Internet message headers become formed and by this time the recipient's primary e-mail address is given to the To: field, not the alias.

Assisted Solution

by:Manoj Bojewar
Manoj Bojewar earned 0 total points
ID: 35230675
This is known issue with Exchange 2007.  Please see the below MS article for the same.

There is a bug in exchange 2007 and behavior changes from e2k3 to e2k7: http://social.technet.microsoft.com/Forums/en/exchangesvrtransport/thread/e4fd7752-e009-4224-bfc8-e7e328ea9fcf

Author Closing Comment

by:Manoj Bojewar
ID: 36123160
its help me to fix the issue.

Author Comment

by:Manoj Bojewar
ID: 36109951
thanks for your help

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