My company has implemented the Qmail 1.0.3 to handle the incoming Internet
emails and relay them to our internal email server.
A error message
"Deferral :Connected_to_x.x.x.x_but_connection_died._Possible
_duplicate!_(#4.4.2)/" has been reported when handle some incoming SMTP
mails.(where x.x.x.x is the ip of the internal mail server)
Those mails will be kept in the queue and re-send again & again until the
queuelifetime has been expired. The same error message will be reported when
they have been re-sent. But our internal mail server has already received
such mails completely and delivered to the user. So the user will received
the same mail many times due to the qmail re-send.
Not all the incoming mails has such problem. It seem to be happened
randomly. The mails with such error message reported are from different mail
servers and with different sending time. The mail size of them are various,
some with attachment and some without.
No such error happened before implementation of the qmail.
Does anybody have idea on this issue and help me to solve it?
B.LAM
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