Re: exim4 configuration errors

[Joe <joe@jretrading.com>]

Bruno Costacurta wrote:
> On Tuesday 26 February 2008 01:17:20 Alex Samad wrote:
> > On Mon, Feb 25, 2008 at 11:38:23PM +0100, Bruno Costacurta wrote:
> > > Hello,
> > >
> > > I have following errors when sending email to en external email address.
> > > Note: pc34ghz.org is the local domain, pubmb.bco@pt.lu the address to
> > > test
> > >
> > >
> > > echo "my test" | mail -s "test exim4" pubmb.bco@pt.lu
> > > ...
> > > 1JTluY-0001YG-5o <= bruno@pc34ghz.org U=bruno P=local S=337
> > > 1JTluY-0001YG-5o ** pubmb.bco@pt.lu R=smarthost T=remote_smtp_smarthost:
> > > SMTP error from remote mail server after MAIL FROM:<bruno@pc34ghz.org>
> > > SIZE=1371: host smtp.pt.lu [194.154.192.108]: 553 5.1.8
> > > <bruno@pc34ghz.org>... Domain of sender address bruno@pc34ghz.org does
> > > not exist
> > Think this says it all Domain of sender address bruno@pc34ghz.org does
> > not exist
> >
> > > 1JTluY-0001YJ-E1 <= <> R=1JTluY-0001YG-5o U=Debian-exim P=local S=1307
> > > 1JTluY-0001YG-5o Completed
> > > 1JTluY-0001YJ-E1 => bruno@pc34ghz.org R=smarthost T=remote_smtp_smarthost
> > > H=smtp.pt.lu [194.154.192.108]
> > > 1JTluY-0001YJ-E1 Completed
> > > ...
> > >
> > > Thanks for any help.
> > > Bye,
> > > Bruno
> > >
> > >
> > >
> > > --
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> > > with a subject of "unsubscribe". Trouble? Contact
> > > listmaster@lists.debian.org
>
>
> However pc34ghz.org is my localdomain as defined in /etc/hosts (also defined 
> pc34ghz) and bruno is the logon user.

And exim verifies sender domains using public DNS. You need to send 
'from' a domain name that is valid on the Internet, preferably the one 
you expect to get replies to.

Exim certainly verifies the sender domain for emails it receives, 
refusing connections from bogus domains.