On 08/14/2012 12:19 AM, Nathan Findley wrote:
The server in question is returning: Aug 8 11:52:18 asp sendmail[13710]: q772pt1H016314: to=<*******@*****.co.jp>, delay=1+00:00:21, xdelay=00:00:00, mailer=esmtp, pri=129960390, relay=mail.*****.co.jp. [IP], dsn=4.0.0, stat=Deferred: Connection reset by mail.*****.co.jp. This deferred error message is new to me. Based on the domain, I have sent mail to the supposed administrators asking them for help on their end. They have yet to reply, unfortunately. Is there anything else I can do?
You might be on the sending end of the Cisco DKIM bug. If the receiving site is using a Cisco router, the rules to check DKIM in e/smtp may be enabled (they are by default). The implementation is buggy and will reject some small number of messages, while allowing others through. The error will be consistent for the message, but other email from the same MTA and sender is accepted. It does not appear to have anything to do with message size.
If the message you are sending has DKIM keys, try sending them without. If you are in contact with the admin, see if they are using Cisco routers, and if the DKIM rules are enabled.
Mike -- Michael D. Sofka [email protected] C&MT Sr. Systems Programmer, Email, HPC, TeX, Epistemology Rensselaer Polytechnic Institute, Troy, NY. http://www.rpi.edu/~sofkam/ _______________________________________________ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list [email protected] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
