From: Joey (JoeyWeb56.net)
Date: Thu May 08 2008 - 12:41:06 CDT

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

> -----Original Message-----
> From: owner-postfix-userspostfix.org
[mailto:owner-postfix-userspostfix.org]
> On Behalf Of Victor Duchovni
> Sent: Wednesday, May 07, 2008 2:35 PM
> To: postfix-userspostfix.org
> Subject: Re: mailq lockups
>
> On Wed, May 07, 2008 at 02:27:11PM -0400, Joey wrote:
>
> > > Exchange really should NOT be allowing client connections to sit idle
> >
> > > for 12 hours tying up resources. What prehistoric version of the
> >
> > > software are these sites running?
> >
> >
> >
> > Running server 2003 & exchange 2003 nothing outdated there...
> >
>
> The double-spacing really makes it hard to read and reply to your mail
> properly, can you try to turn that off?
>
> > > - Disable PIPELINING to Exchange (smtp_discard_ehlo_keywords)
> > > if Exchange PIPELINING is buggy.
> >
> > Will try this now...
> >
> > So create smtp_discard_ehlo_keyword_address_maps =
hash:/etc/postfix/mapname
>
> Easier to turn it off globally for a dedicated transport:
>
> main.cf:
> # Use "cdb" if available
> default_database_type = hash
> indexed = ${default_database_type}:${config_directory}/
>
> disable_pipelining = PIPELINING, silent-discard
> transport_maps = ${indexed}transport
>
> master.cf:
> smtplite unix - - n - - smtp
> -o smtp_discard_ehlo_keywords=$disable_pipelining
>
> transport:
> example.com smtplite
>
>
> > And in the mapname file put:
> >
> > Client-domain.com pipelining
>
> No, this only works for IP addresses, but the transport based approach
> above works for domains.
>
> > I only see the 3 options of: pipelining, starttls, auth in the doc I
see,
> > should it bee nopipelining?
>
> No it should be "pipelining", because this is a *discard* keywords list.
>

To keep it simple I took out the pipelining statement as a quick test, and
that didn't work.
Is there something from the spamassassin/ anti-spam side that could be a
factor in this?
The exchange server has NOTHING for anti-spam, the postfix server acts as a
gateway to accomplish this.

• Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]