Carver Banks:
> -----Original Message-----
> From: [email protected]
> [mailto:[email protected]] On Behalf Of Wietse Venema
> Sent: Friday, February 13, 2009 10:57 AM
> To: Postfix users
> Subject: Re: Protocol error: host said: 250 2.0.0 Ok (in reply to DATA
> command)
>
> Carver Banks:
> >> Hello Everyone,
> >> I am seeing weird bounces on my postfix server and can't quite figure out
> >> why...
> >> It looks like it is failing while passing the mail off to a spam
> >> appliance, but from the spam appliance side I see no record of the
> >> message. Also
> >>
> >> Any ideas, I have a couple examples below?
> >>
> >> Example Mail.log entry:
> >>
> >> Feb 12 06:17:53 mail01 postfix/smtp[24220]: C06165CE92:
> >> to=<[email protected]>, relay=175.21.0.67[175.21.0.67]:2525,
> >> conn_use=18, delay=16, delays=1.4/13/0/1.7, dsn=5.5.0, status=bounced
> >> (Protocol error: host 175.21.0.67[175.21.0.67] said: 250 2.0.0 Ok (in
> >> reply to DATA command))
>
> >What does "postconf mail_version" say? We have added workarounds
> >for clients and servers getting out of sync.
> It says 2.3.3
Postfix 2.3.5 has a fix for getting out of sync with reused
connections when the server is too slow responding to RSET.
You can also work around connection reuse problems by setting
smtp_connection_cache_on_demand=no in main.cf.
Wietse
> >What software is running on port 2525?
> Sonicwall (spam filter running on W2K3)
>
> > Wietse
>
>
