Re: LYNX-DEV Makefile for sco5 and sendmail...

[John DuBois]

On Sep 21,  3:43pm, Bela Lubkin wrote:
}   $ /usr/lib/sendmail -t -oi < test.msg
}   $ /usr/lib/mail/execmail address@hidden < test.msg
}   $ /usr/mmdf/bin/submit -mlruxto,cc\* < test.msg
} 
} Results: both MMDF's "sendmail" and "submit" added annoying extra lines,
} but submit's was much more annoying.  "sendmail" added:
} 
}   Sender: address@hidden
} 
} even though that was the same as the From: line.  "submit" added:
} 
}   Source-Info:  From (or Sender) name not authenticated.
} 
} which is really annoying.

Note that this message will will only be added when it is appropriate, namely:

If MMDF is misconfigured such that a legitimate name for the local host doesn't
appear in local.chn.
The user submitting mail puts a user name on the From: line that does not
resolve to the invoking process' uid.
The user submitting mail puts a host name on the From: line that is not one of
the local host's names.

In other words, MMDF is making a very sensible effort at preventing users from
forging mail through its facilities.  The only reason execmail doesn't do it is
that execmail is made setuid root in a misguided circumvention of this effort.
Of course, if you're not taking advantage of any of the many mail queuing and
error reporting options that can only be set by invoking submit directly, you
might as well use the sendmail front end for simplicity's sake.

        John
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