Re: MAILHOST and envelope sender

[Harald Hanche-Olsen]

- Chris Johnson <[EMAIL PROTECTED]>:

| How does Emacs inject mail?

Usually, it uses sendmail-send-it, defined in sendmail.el.  The
important part says

            (apply 'call-process-region
                   (append (list (point-min) (point-max)
                                 (if (boundp 'sendmail-program)
                                     sendmail-program
                                   "/usr/lib/sendmail")
                                 nil errbuf nil "-oi")
                           ;; Always specify who from,
                           ;; since some systems have broken sendmails.
                           (list "-f" (user-login-name))
                           (and mail-alias-file
                                (list (concat "-oA" mail-alias-file)))
                           ;; These mean "report errors by mail"
                           ;; and "deliver in background".
                           (if (null mail-interactive) '("-oem" "-odb"))
                           ;; Get the addresses from the message
                           ;; unless this is a resend.
                           ;; We must not do that for a resend
                           ;; because we would find the original addresses.
                           ;; For a resend, include the specific addresses.
                           (or resend-to-addresses
                               '("-t"))))

In other words, it basically runs

  /usr/lib/sendmail -oi -f USER -oem -edb -t

where USER is your login name.
That is presumably what causes the problem.

This was from emacs 19; things may be different in the emacs 20 world.

- Harald