getting sendmail to add Return-Path: header

[Matthew Seaman]

On Fri, Jul 04, 2003 at 04:28:48PM -0400, David Banning wrote:
> > Return-Path: is meant to be inserted into the message headers by the
> > sendmail that does final delivery -- it's not something you should set
> > on all of the e-mail you send out.  The machinery to handle all this
> > should already be in your sendmail.cf -- if there's a line:
> > 
> >     H?P?Return-Path: <$g>
> > 
> > in the 'Format of Headers' section, then any delivery mailer with 'P'
> > in the F= flags (which is the default for the local and prog mailers)
> > will insert the Return-Path: header -- eg.
> > 
> >     Mlocal,         P=/usr/libexec/mail.local, F=lsDFMAw5:/|@qPSXfmnz9, S=EnvFromSMTP/HdrFromL, R=EnvToL/HdrToL,
> >                                                              ^^^^
> 
> OK. I've got the same entries as you, but I am not getting the 
> Return-Path: put in the header. Now I am reading my mail -on- the server.
> Since it is mail.local or in my case procmail that reads it, it -should-
> put it in before depositing it in /var/mail for pickup, shouldn't it?
> 
> I have tried compiling with the procmail option out, like yours and it
> makes no difference.
> 
> My sendmail.cf shows;
> 
> Mlocal,         P=/usr/local/bin/procmail, F=lsDFMAw5:/|@qSPfhn9, S=EnvFromL/Hdr
> FromL, R=EnvToL/HdrToL,
>                 T=DNS/RFC822/X-Unix,
>                 A=procmail -Y -a $h -d $u
> Mprog,          P=/bin/sh, F=lsDFMoqeu9, S=EnvFromL/HdrFromL, R=EnvToL/HdrToL, D
> =$z:/,
>                 T=X-Unix/X-Unix/X-Unix,
>                 A=sh -c $u

Actually, I use procmail as the default delivery agent myself --- that
example came from /etc/mail/freebsd.cf --- but even so, the
Return-Path: stuff is inserted correctly.  How are you checking for
the presence or absence of the header?  Most mail applications will
weed it out of what they display to you -- bouncing on the 'h' key in
mutt shows it, generally as the 2nd line of header right underneath
the 'From ' line.  Otherwise, grep'ing the mbox file directly is
probably the thing to do.

	Cheers,

	Matthew

-- 
Dr Matthew J Seaman MA, D.Phil.                       26 The Paddocks
                                                      Savill Way
PGP: http://www.infracaninophile.co.uk/pgpkey         Marlow
Tel: +44 1628 476614                                  Bucks., SL7 1TH UK
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