masquerading envelope not working in mutt

Fri Jan 23 17:16:53 UTC 2004

Am Fr, den 23.01.2004 schrieb Jack Bowling um 17:45:
> On Fri, Jan 23, 2004 at 10:14:03AM +0100, Alexander Dalloz wrote:
> > Am Fr, den 23.01.2004 schrieb Jack Bowling um 09:19:
> > > Emails to this list have been bouncing back from the redhat mail server since
> > > yesterday using mutt. I believe it is because RH has started doing a DNS lookup
> > > on the hostnames and my envelope sender is set for my local hostname.
> > > 
> > > I first tried to use the "set envelope_from" option in mutt to no avail. I then
> > > went through the whole complicated rigamarole of setting up envelope
> > > masquerading in sendmail using genericstable. Again to no avail.
> > > 
> > > So I am stuck here wondering what I could possibly be doing wrong. Apparently I
> > > am unable to modify the envelope sender on my FC1 box. Perhaps somebody has run
> > > into this before?
> > > 
> > > --
> > > Jack Bowling
> > 
> > If you look at those mail header lines, showing the starting points of
> > your mail:
> > 
> > Received:  from pd5mo2so.prod.shaw.ca (shawidc-mo1.cg.shawcable.net
> > [24.71.223.10]) by mx1.redhat.com (8.11.6/8.11.6) with SMTP id
> > i0N8Sel19075   for <fedora-list at redhat.com>; Fri, 23 Jan 2004 03:28:41
> > -0500
> > Received:  from pd2mr2so.prod.shaw.ca (pd2mr2so-ser.prod.shaw.ca
> > [10.0.141.109]) by l-daemon (iPlanet Messaging Server 5.2 HotFix 1.18
> > (built Jul 28 2003)) with ESMTP id <0HRX00LI2OHAKR at l-daemon> for
> > fedora-list at redhat.com; Fri, 23 Jan 2004 01:19:58 -0700 (MST)
> > Received:  from pn2ml10so.prod.shaw.ca (pn2ml10so-qfe0.prod.shaw.ca
> > [10.0.121.80]) by l-daemon (iPlanet Messaging Server 5.2 HotFix 1.18
> > (built Jul 28 2003)) with ESMTP id <0HRX0042GOHAZ1 at l-daemon> for
> > fedora-list at redhat.com; Fri, 23 Jan 2004 01:19:58 -0700 (MST)
> > Received:  from 192.168.0.2 ([24.70.73.190]) by l-daemon (iPlanet
> > Messaging Server 5.2 HotFix 1.18 (built Jul 28 2003)) with SMTP id
> > <0HRX0074ZOHACX at l-daemon> for fedora-list at redhat.com; Fri, 23 Jan 2004
> > 01:19:58 -0700 (MST)
> > 
> > You easily see that (pn2ml10so-qfe0.prod.shaw.ca [10.0.121.80]) looks
> > strange, as 10.0.0.0/16 is no routeable net. Same with
> > pd2mr2so.prod.shaw.ca (pd2mr2so-ser.prod.shaw.ca [10.0.141.109]).
> > Additional I do not see any Sendmail host involved at your side but just
> > a Sun iPlanet server.

Yes, the received lines are to be read from bottom to top.

> Actually, in the above, the first server it hits is the external mailserver
> at 24.71.223.10. I would assume anything in the 10.0.x.x block is an internal
> box handling the mail load. And yes, you won't see any local host involved
> from my side since I have sendmail set for SMART RELAY through my ISP.

Might be that the provider uses some machines to route the mail, maybe
for checking and filtering.

> However, the reason that you got that mail in the first place is that I used 
> another mailer instead of mutt. Note the line: 
> 
> > Received:  from 192.168.0.2 ([24.70.73.190]) by l-daemon (iPlanet...
> 
> which is the envelope sender. It is still being tagged with the IP of my
> FC1 box but this one does not get bounced.

To see your private IP address in the header is quite normal. Look at my
mail's header.

> Now here are the same 3 Received lines from the bounced mail when using mutt:
> 
> Received: from pd2mr4so.prod.shaw.ca
>  (pd2mr4so-qfe2.prod.shaw.ca [10.0.162.107]) by l-daemon
> 
> Received: from pn2ml9so.prod.shaw.ca (pn2ml9so-qfe0.prod.shaw.ca
> [10.0.121.7])
> 
> Received: from nonesuch.localdomain ([24.70.73.190])
> by l-daemon (iPlanet Messaging Server 5.2 HotFix 1.18 (built Jul 28 2003))
> with ESMTP id <0HRX00B4TKAQLP at l-daemon> for jbinpg at shaw.ca; Thu,
> 22 Jan 2004 23:49:38 -0700 (MST)
>  
> ...and here is the reason given for the bounce:
>  
> MIME-version: 1.0
> Content-type: text/plain; charset=us-ascii
> Content-disposition: inline
> User-Agent: Mutt/1.4.1i
> X-Authentication-warning: nonesuch.localdomain: jb set sender to
> jbinpg at shaw.ca using -f
> Original-recipient: rfc822;jbinpg at shaw.ca

There is no bounce reason! Where do you see any? The warning is just a
warning which Sendmail produces if you force the sender.

> Somehow the local hostname of nonesuch.localdomain = 192.168.0.2 is being
> tagged onto the envelope sender. Here are my relevant config lines in my
> .muttrc:
> 
> set realname="Jack Bowling"
> set from="jbinpg at shaw.ca"
> set use_from     # create From: Header
> set envelope_from       # set envelope header as well as reply-to
> 
> Yet, mails get bounced using mutt but not using another mailer. I'm at a
> loss.

I do not know mutt in detail but can state that you in most cases you
will need a resolvable FQDN for your sendmail host if you directly send
with it to foreign MTAs. And it does not matter what you put into your
.muttrc as envelope sender name. Only foolish configured MTAs will
accept incoming mail by other hosts which are not resolvable. So you
need to use your provider's SMTP server as smarthost in Sendmail if you
have no resolvable host.

> -- 
> Jack Bowling
> mailto: jbinpg at shaw.ca

Alexander

-- 
Alexander Dalloz | Enger, Germany
PGP key valid: made 13.07.1999
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