I've recently had a local ISP block incoming email from our mailing list server. I'm trying to figure out why this occurred.it is not the result of virus or spam activity. One thing I noticed: our PTR record is listed as mail.domain.org, but it doesn't match the actual host name of the server (as would be identified in the mail header). I've now checked the PTR records for several domains controlled by the ISP in question, and found they don't include a host name in the PTR record at all.
Otherwise, Mailman has been working perfectly for all other recipients. Questions: Should I have my ISP drop the host name portion in my PTR? Could the other ISP be attempting to verify my actual server host name against the existing PTR record before accepting email? Any other suggestions to keep the ISP's on my good side? (.beyond the obvious) TIA, Rodd Ahrenstorff IT Systems Coordinator Medical Associates of the Black Hills [EMAIL PROTECTED] Office: 605-718-3150 Cell: 605-209-8912 ------------------------------------------------------ Mailman-Users mailing list [EMAIL PROTECTED] http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/
