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List:       busybox
Subject:    RE: applet "sendmail" remarks
From:       Brecht Ameije <bam () abm ! be>
Date:       2012-04-18 13:12:19
Message-ID: d686a417-0158-4f79-a022-cbe2787a31a5 () abm ! be
[Download RAW message or body]

On Wed 28 apr 2012 0:27, ralda@gmx.de wrote: 
> 
> Hi !
> 
> > 2nd: "-f sender" option
> > But I've noticed that it's not used!
> 
> > I send mails using:
> > 
> > cat header.txt /mnt/jffs2/report-20120404-153857174.csv | busybox
> > sendmail -f testserver@abm.be -S mailserver.abm.be
> > 
> > where header.txt contains my from: / to: / subject: lines.
> > I see that the address in the "from:" line in header.txt is used
> > instead of the -f option. And when I leave out the from: line, my
> > outlook client receives an email with an empty "from:" field...
> > 
> > Any suggestions?
> 
> The -f option shall set the mail envelope address, which is NOT the "From" in the
> header of your mail! This is a big difference which is got wrong by many users.
> The envelope addresses (sender/recipients) are transmitted during the SMTP
> handshake and usually become not part of the message header. Beside this
> some MTAs/MDAs put envelope addresses in other mail headers (for comment
> purposes), so you may see your envelope addresses if you look closely to all
> your message headers.

Thanks, that's clear. The address from the -f option appears in "Return-Path:" when I \
check the RAW message. Is there a reason why one would want to use a different \
address in the "Return-Path" field and in the "FROM" field? 

Brecht

> 
> --
> Harald

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