Beginning maybe a few days ago, Comcast is rejecting ALL mailing list email to them. The error I'm getting is
<j....@comcast.net>: host mx1.comcast.net[96.114.157.80] said: 550 5.1.0 Invalid sender domain (in reply to MAIL FROM command) I can't find the details of the MAIL FROM in the bounce message. The handling of the message was: Return-Path: <gpa-boun...@lists.ripplingwater.us> Received: from pdx1-mailman01.dreamhost.com (pdx1-mailman01.dreamhost.com [IPv6:::1]) by pdx1-mailman01.dreamhost.com (Postfix) with ESMTP id 02F3E20460; Sun, 29 Aug 2021 06:24:42 -0700 (PDT) X-Original-To: g...@lists.ripplingwater.us Delivered-To: gpa-ripplingwater...@pdx1-mailman01.dreamhost.com and in the maze of headers there's Action: failed Status: 5.1.0 Remote-MTA: dns; mx1.comcast.net Diagnostic-Code: smtp; 550 5.1.0 Invalid sender domain But nothing I could find in the message had the SMTP exchange so I could see what the MAILFROM was [some SMTP servers put in a header line for the MAIL FROM, but I guess not comcast] I'm assuming that the MAIL FROM was the mailman server and I don't understand why the mail from should suddenly be a problem -- it's happened on two different domains of mine so I *THINK* all the damn DNS nonsense is right, but I can't guess. I just wanted to check what the MAIL FROM would be before I go and get a ticket asking the ISP why their domain has suddently become "Invalid". Comcast is such a pain to deal with ...:o) Any insights before I hit customer support would be appreciated.. thanks /Bernie\ Bernie Cosell ber...@fantasyfarm.com -- Too many people; too few sheep -- ------------------------------------------------------ Mailman-Users mailing list -- mailman-users@python.org To unsubscribe send an email to mailman-users-le...@python.org https://mail.python.org/mailman3/lists/mailman-users.python.org/ Mailman FAQ: http://wiki.list.org/x/AgA3 Security Policy: http://wiki.list.org/x/QIA9 Searchable Archives: https://www.mail-archive.com/mailman-users@python.org/ https://mail.python.org/archives/list/mailman-users@python.org/