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RE: transports and wildcard

From: Hement Gopal (Hement.Gopalwits.ac.za)
Date: Wed Aug 02 2006 - 05:35:42 CDT

Hi Magnus

Many thanks for the tips.....we're new at postfix so :(

Currently we do not have a list of the domains as we are using wildcards in exim to cater for this need.

I will try the regex option.....and if anyone else has any other advice, I'm all ears.

Thanks for the help once again.

Hement Gopal
Computer & Network Services
University of the Witwatersrand
Johannesburg
+27 11 717 1652 (Tel)
+27 11 717 1614 (Fax)
hement.gopalwits.ac.za

> -----Original Message-----
> From: owner-postfix-userspostfix.org [mailto:owner-postfix-
> userspostfix.org] On Behalf Of Magnus Bäck
> Sent: 02 August 2006 12:32 PM
> To: postfix-userspostfix.org
> Subject: Re: transports and wildcard
>
> On Wednesday, August 02, 2006 at 12:20 CEST,
> Hement Gopal <Hement.Gopalwits.ac.za> wrote:
>
> > I am using a transport list to route mail for containers that exist on
> > downstream mail servers.
> >
> > Eg :-
> >
> > clm.pg smtp:nike:25
> > clm.ug smtp:nike:25
> > ebe.pg smtp:nike:25
> > ebe.ug smtp:nike:25
> > hse.pg smtp:nike:25
> > hse.ug smtp:nike:25
>
> Note that you should probably enclose the hostname in square brackets to
> avoid MX lookups.
>
> Also consider using the relay transport instead of smtp to decrease the
> risk of having your outbound messages starve your inbound messages.
>
> > where nike is the mail server and clm, etc are containers on the
> > server.
> >
> > I also have other downstream mail servers whose mail domains are the
> > same as the server name itself
> >
> > Eg. userDOMAIN-XYZ should be routed to smtp:DOMAIN-XYZ:25
> >
> > The number of servers that require these entries is high and I do not
> > want to insert individual entries for each of them.
>
> Generate the list. Let the computer do the work for you. I assume you
> have the domains listed somewhere in your Postfix configuration anyway,
> probably relay_domains.
>
> > Is there a wildcard option in the transport list I can use that will
> > satisfy this :-
> >
> > Eg
> >
> > *.my.domain smtp:*.my.domain:25
> >
> > Where the * matches on both sides?
>
> You can use a regexp/pcre map.
>
> /^(.*\.example\.com)$/ smtp:$1
>
> > Postconf -d follows
>
> Why are you posting the "postconf -d" output? That displays the default
> parameter values and it's of course completely useless in this context.
>
> --
> Magnus Bäck
> magnusdsek.lth.se

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