Hi,
I'm having trouble figuring out why this header check doesn't reject a
mailer-daemon bounce email with ".lan" in the From address:
/^From:.*\.lan>$/ REJECT Invalid domain
It works if I use postmap directly, but not when the bounce message is
received. Does it have something to do with it being a bounce message?
$ postmap -q 'From: Mail Delivery System
<mailer-dae...@smtp03.nrtc.email-ash1.sync.lan>'
pcre:/etc/postfix-110/header_checks.pcre
REJECT Invalid domain
/etc/postfix-110/main.cf:
header_checks = regexp:/etc/postfix-110/header_checks
pcre:$config_directory/header_checks.pcre
Apr 5 03:33:44 armor postfix-110/smtpd[1323082]: connect from
mail.nrtc.syn-alias.com[129.213.214.220]
Apr 5 03:33:45 armor policyd-spf[1323084]: prepend Received-SPF: None
(no SPF record) identity=no SPF record; client-ip=129.213.214.220;
helo=mail.nrtc.syn-alias.com; envelope-from=<>; receiver=<UNKNOWN>
Apr 5 03:33:45 armor postfix-110/smtpd[1323082]: 3EA5320055E46:
client=mail.nrtc.syn-alias.com[129.213.214.220]
Apr 5 03:33:45 armor postfix-110/cleanup[1323942]: 3EA5320055E46:
message-id=<6e.b8.17947.1d0fb...@smtp03.nrtc.email-ash1.sync.lan>
Apr 5 03:33:45 armor postfix-110/qmgr[1314349]: 3EA5320055E46:
from=<>, size=4906, nrcpt=2 (queue active)
The message is then quarantined by amavis because of the From address
having ".lan".
Return-Path: <>
X-Envelope-From: <>
Received: from mail.nrtc.syn-alias.com (mail.nrtc.syn-alias.com
[129.213.214.220])
Received: from [127.0.0.1] ([local])
by smtp03.nrtc.email-ash1.sync.lan (envelope-from <>)
(ecelerity 4.3.1.69410 r(Core:4.3.1.0)) with INTERNAL
id 6E/B8-17947-1D0FB426; Tue, 05 Apr 2022 03:33:37 -0400
From: Mail Delivery System <mailer-dae...@smtp03.nrtc.email-ash1.sync.lan>
To: u...@example.com
Subject: Mail Delivery Failure
Message-ID: <6e.b8.17947.1d0fb...@smtp03.nrtc.email-ash1.sync.lan>
I've pasted the entire message here
https://pastebin.com/zEkxMzuq
How should I handle this? Ideas greatly appreciated.
Thanks,
Alex
