On Wed, Apr 27, 2022 at 08:05:46AM -0400, Haines Brown wrote: > If I understand correctly, which is always in serious doubt, it is > exim that constructs the Sender: line by combining /etc/mailname and > $LOCALHOST. Is this so? > > These values are present: > > $ nano /etec/mailname > lenin.histomat.net
Obvious typo. This means you are not pasting results directly from a terminal into an email. Instead, you're re-typing them, and making tons of errors in the process. That makes it super hard to know what is actually real. > $ echo $LOGNAME > haines You mentioned $LOCALHOST before, and now suddenly it's $LOGNAME. > However I'm not clear whether the field is empthy or that what us > in it field is not owned by me. I have popcorn installed, and it has popcon, not popcorn. > root send a priodidic message. The mail server does not recognize > the r...@histomats.net address. It sends me this message: *Which* mail server? Who is "it"? > A message that you sent could not be delivered to one or more of its > recipients. This is a permanent error. The following address(es) failed: > > sur...@popcon.devuan.org > host mail.guardedhost.com [216.239.133.245] > SMTP error from remote mail server after pipelined sending data block: > 553 5.7.1 <r...@histomat.net>: Sender address rejected: > not owned by user bro...@historicalmaterialism.info > > Reporting-MTA: dns; lenin.histomat.net So, this message was generated by your own MTA running on your own computer, after the message was rejected by the receiving MTA. There are many things I do not understand in this error message. For starters, who or what is "host mail.guardedhost.com [216.239.133.245]" and what do they have to do with anything? unicorn:~$ host -t mx popcon.devuan.org popcon.devuan.org mail is handled by 10 mx.devuan.org. unicorn:~$ host mx.devuan.org mx.devuan.org has address 141.95.83.167 There's no mention of mail.guardedhost.com or 216.239.133.245 in DNS at all. It sounds like something on *your* end. Maybe you've configured your MTA to use a smarthost, and mail.guardedhost.com is your smarthost? And if so, it's refusing to relay mail from you as long as you claim to be r...@histomat.net instead of bro...@historicalmaterialism.info or something. Also, you appear not to be using Debian, so... all bets are off.
