postfix-users

pw wrote:
> Wietse Venema wrote:
> > pw:
> > > Hello,
> > >
> > > Postfix appears to be selectively blocking
> > > only mail sent from google mail servers.
> > > All other mail appears to be processed normally.
> > >
> > > ie: from /var/log/syslog
> > >
> > > Aug  2 11:32:12 mail postfix/smtpd[18066]: connect from 
> > > ug-out-1314.google.com[66.249.92.173]
> > >
> > > Aug  2 11:37:12 mail postfix/smtpd[18066]: timeout after EHLO from 
> > > ug-out-1314.google.com[66.249.92.173]
> > >
> > > Aug  2 11:37:12 mail postfix/smtpd[18066]: disconnect from 
> > > ug-out-1314.google.com[66.249.92.173]
> > >
> > >
> > > This happens for all mail coming from google's servers.
> > > At first I thought it may have problems with DNS lookups
> > > so I tried with
> >
> > If Postfix 2.2 or later, try:
> >
> > /etc/postfix/main.cf:
> >     smtpd_discard_ehlo_keyword_maps = pipelining
> >
> > and report if this makes a difference.
> >
> >     Wietes
>
>
> No change with that setting.
>
> P


Hello,

I have resolved this issue.
The problem was with the 'SHOREWALL' firewall
on the mail server. The problem was resolved
by getting rid of shorewall in favour of
a simpler iptables firewall.

Peter