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 --
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