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01.30.2008 at 02:05PM PST, ID: 23124562
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Exchange 2007 does not receive mail if SMTP code BDAT is used by sender (hotmail, msn, some other domains)

Asked by PaulR in Exchange Email Server, Email Servers, Simple Mail Transfer Protocol (SMTP)

When I direct our incoming mail to our new Exchange 2007 server, mail from some sending domains is not received, and the sender gets a 4.4.7 NDR (eventually).  After turning on SMTP logging for the appropriate receive connector, I have discovered that all of the messages that are not received use the BDAT command and all of the messages that are received use the DATA command.  Is there something I need to do on my Exchange 2007 server to enable the receipt of mail that uses the BDAT command?  A sample of the SMTP log is attachedStart Free Trial
Attachments:
 
mail-rec-no-cleaned.txt (924 bytes) (File Type Details) 
smtp log of message not received
 
[+][-]01.30.2008 at 03:07PM PST, ID: 20782500

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[+][-]01.31.2008 at 06:39AM PST, ID: 20786920

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[+][-]01.31.2008 at 06:44AM PST, ID: 20786971

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[+][-]01.31.2008 at 07:26AM PST, ID: 20787441

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About this solution

Zones: Exchange Email Server, Email Servers, Simple Mail Transfer Protocol (SMTP)
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Solution Provided By: tgtran
Participating Experts: 2
Solution Grade: A
 
 
 
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