On Wed 27 Apr 2022 at 14:57:19 -0500, David Wright wrote: > On Wed 27 Apr 2022 at 08:05:46 (-0400), Haines Brown wrote: > > David. thanks for hanging in with me! > > > > On Tue, Apr 26, 2022 at 03:23:17PM -0500, David Wright wrote: > > > > > Do you know why mutt is adding a Sender: line to your emails? > > > Did you ask it to, or have you been asked to by someone else? > > > > No, I didn't ask mutt to add a Sender: line and I do not know what > > evidence there it that it is doing so. > > OK. So I would drop all conversation about a "Sender: line". > You are the sender, the person who drops the letter in the blue > box on the street. The headers that are relevant are "from" > headers, "From:" in the email and "MAIL FROM" in the envelope. > So all these error messages that talk about a missing "sender" > are just using the agent, you, in place of the preposition, from. > > The lines which principally concern you/your system are: > > 1) The EHLO line, which you typically don't see, is read from > /etc/mailname by exim, is set to lenin.histomat.net, and works. > You set it early in the debian-installer, if Devuan follows > along the same path. You confirmed it immediately after you > told exim "mail sent by smarthost; … … ", on the next screen > (again, if Devuan follows).
The EHLO is typically seen in the first Received: header. In your case it is axis.corp. It is not obtained from /etc/mailname by exim. I would guess you have a line in /etc/hosts like this: 127.0.1.1 axis.corp HOSTNAME A suitablely configured exim gets the EHLO from this line. To test, use 127.0.1.1 test.axis.corp HOSTNAME and send a mail. I would suggest https://wiki.debian.org/PkgExim4UserFAQ#How_does_exim_find_out_its_host_name_to_use_in_HELO.2FEHLO.3F as a reasonable source of information. -- Brian.