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 procmail's arguments. 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. Ryan
Fixed in sendmail-8.9.3-15.