Marc Perkel wrote:
> I have an odd problem. Servers from online-age.net which are runing
> sendmail are not receiving my final 250 OK message. So they keep the
> connection open waiting and finally time out. My end think the message
> is received and processes it. The sending end thinks the message failed
> and resends it resulting in duplications.
>
> I'm beginning to think that this is happening with more than one host
> and may be the cause of some random email duplications. Is there any
> chance Exim is closing the connection too quickly at the and of a
> sucessful SMTP session and the sender isn't getting the final OK?
A few years ago I had a similar issue. The problem turned out to be
some mailgate extension to a PIX firewall. The software was buggy and
caused the sending server to not see the final 250 OK and thus kept
sending the message over and over. It may be worth to check and see
what firewall equipment is in the picture here.
thanks,
M
--
Michael F. Sprague | mfs@???
http://www.saneinc.net | Provider of SpamOnion anti-spam service
System and Network Engineering (SaNE), Inc
