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Message delivered with NDR to sender

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SjrH

IS-IT--Management
Jun 24, 2003
747
GB
Bit of an odd one -

If I send a message from a mailbox on a 2003 server to a recipient in a remote site, I get an NDR like this -

Code:
 The e-mail address could not be found.  Perhaps the recipient moved to a different e-mail organization, or there was a mistake in the address.  Check the address and try again.The MTS-ID of the original message is:c=GB;a= ;p=Company;l=MAIL01-071008073112Z-1
            MSEXCH:MSExchangeMTA:London:MAIL01

However, the message IS delivered to the recipient successfully. This only happens if the mailbox sending the message is homed on a 2003 server, not if its on a 5.5 server (mixed mode environment - two 2003, two 5.5 servers).

Anyone seen this before?

TIA


[small]have you turned it off and on again?[/small]
 
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