In /usr/lib/sendmail-cf/ostype/linux.m4, the definitions for
LOCAL_MAILER_FLAGS and LOCAL_MAILER_ARGS are supposedly
commented out, however, a `#' doesn't begin a comment in m4;
that is done with either a `divert(-1)' or a `dnl'. The
result is that if you don't have a `MAILER(procmail)' in
your mc file, sendmail will try to invoke /bin/mail with
The fix is to replace the `#'s with `dnl's.
I have been having trouble with sendmail since I upgraded to 6.0.
Every now and then it wouldn't run. I'd get: 431 0.0 0.0 0 0
? Z 13:19 0:00 [sendmail <defunct>]
I couldn't kill it, nor restart sendmail. I had to reboot.
This would allow me to send outgoing mail, but incoming would get:
fetchmail: reading message 35 of 54 (2643 octets) .fetchmail: SMTP
connect to localhost failed
fetchmail: SMTP transaction error while fetching from groke
I just edited the file as indicated, and then used linuxconf to
regenerate the sendmail.cf file.
Poof! All works.
I STRONGLY recommend that you put out a new version of sendmail
immediately. I think it is positively negligent that you had a
solution, and have not supplied any relief to users.
Fixed in sendmail-8.9.3-15.