Hi Todd,
Thanks very much for this!
On Wed Jun11'25 09:09:52PM, Todd Zullinger wrote:
> From: Todd Zullinger <tmz@xxxxxxxxx>
> Date: Wed, 11 Jun 2025 21:09:52 -0400
> To: users@xxxxxxxxxxxxxxxxxxxxxxx
> Reply-To: Community support for Fedora users <users@xxxxxxxxxxxxxxxxxxxxxxx>
> Subject: Re: After upgrade to F42, mutt + postfix no longer able to send
> email
>
> Ranjan Maitra via users wrote:
> >> After an upgrade to F42, I am no longer able to send
> >> email. When I press "send on mutt" after composing, I get
> >>
> >> Error sending message, child exited 127 (Exec error.).
> >>
> >> Any suggestions on what the error could be?
> >
> > I wanted to add that I upgraded using dnf system-upgrade
> > plugin.
> >
> > My /etc/postfix/main.cf is carried over from F41 (and
> > before).
>
> There were issues for many folks with the merge of bin and
> sbin. The result is that binaries aren't found as they
> should be.
>
> Mutt's default for $sendmail uses /usr/sbin/sendmail. You
> can check the value in your mutt, via `:set ?sendmail` and
> then verify the path exists. It is likely a symlink to
> /etc/alternatives/mta which is then a symlink to something
> like /usr/sbin/sendmail.postfix.
>
> I just installed postfix and mutt in a Fedorda 42 container
> and mutt reports: sendmail="usr/bin/sendmail -oem -oi" which
> seems to be entirely broken. You may have to set that
> manually in your muttrc in addition to fixing the symlinks
> to the sendmail binary, if they're broken.
So, for me, on the F41 machine which does not report an issue, I get:
$ ll /etc/alternatives/mta-sendmail
lrwxrwxrwx. 1 root root 25 Apr 26 14:25 /etc/alternatives/mta-sendmail -> /usr/lib/sendmail.postfix*
$ ll /usr/lib/sendmail.postfix
lrwxrwxrwx. 1 root root 24 Jul 24 2024 /usr/lib/sendmail.postfix -> ../sbin/sendmail.postfix*
On the F42 machine, where I get that error, I have
$ ll /etc/alternatives/mta-sendmail
lrwxrwxrwx. 1 root root 25 Feb 6 2023 /etc/alternatives/mta-sendmail -> /usr/lib/sendmail.postfix*
$ ll /usr/lib/sendmail.postfix*
lrwxrwxrwx. 1 root root 23 May 8 19:00 /usr/lib/sendmail.postfix -> ../bin/sendmail.postfix*
So, sbin to bin.
Interestingly, the F42 machine has:
$ locate sendmail.postfix
/usr/bin/sendmail.postfix
/usr/lib/sendmail.postfix
/usr/sbin/sendmail.postfix
with the /usr/bin/sendmail.postfix pointing to its sbin cousin.
The F41 machine is simpler:
$ locate sendmail.postfix
/usr/lib/sendmail.postfix
/usr/sbin/sendmail.postfix
One thing to note is that rpmconf -a reports a differenced main.cf and I did not install it because I wanted to keep my current one. There is a merge option, but I am not sure what the following means:
Your choice: M
You did not select any frontend for merge.
Define it with environment variable 'MERGE' or flag -f.
I don't know if that makes a difference, but I do note that one of the changes there is in the path:
< command_directory = /usr/bin (for my default) ---
> command_directory = /usr/sbin (for the suggested main.cf.rpmnew)
I tried changing this in my /etc/postfix/main.cf to the latter version but it did not make a difference.
Thanks again!
Best wishes,
Ranjan
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