From: Carl Brewer on

A quick one, I hope, postfix v 2.3.3 on a server with multiple IP addresses.

Is it possible to have a policy stating that email from a particular
address goes out using a specific IP address, and everything else by the
system's default IP address?

I want to isolate a mailing list to its own IP address.

Can anyone point me at the right doco?

Thankyou

Carl

From: Carl Brewer on
Carl Brewer wrote:
>
> A quick one, I hope, postfix v 2.3.3 on a server with multiple IP
> addresses.
>
> Is it possible to have a policy stating that email from a particular
> address goes out using a specific IP address, and everything else by the
> system's default IP address?
>
> I want to isolate a mailing list to its own IP address.
>
> Can anyone point me at the right doco?

I'll answer my own question!

sender_dependent_default_transport_maps

Postfix 2.7, which is RC2 at the moment. Is anyone using it on any
production systems? Any examples of how to use it?

From: Vegard Svanberg on
* Carl Brewer <carl(a)bl.echidna.id.au> [2010-02-11 03:51]:

> A quick one, I hope, postfix v 2.3.3 on a server with multiple IP addresses.
>
> Is it possible to have a policy stating that email from a particular
> address goes out using a specific IP address, and everything else by
> the system's default IP address?

I'm having a similar question. I'd like to have e-mails from
authenticated users go out through a different IP. Is that possible?

--
Vegard Svanberg <vegard(a)svanberg.no> [*Takapa(a)IRC (EFnet)]

From: Wietse Venema on
Vegard Svanberg:
[ Charset ISO-8859-1 unsupported, converting... ]
> * Carl Brewer <carl(a)bl.echidna.id.au> [2010-02-11 03:51]:
>
> > A quick one, I hope, postfix v 2.3.3 on a server with multiple IP addresses.
> >
> > Is it possible to have a policy stating that email from a particular
> > address goes out using a specific IP address, and everything else by
> > the system's default IP address?
>
> I'm having a similar question. I'd like to have e-mails from
> authenticated users go out through a different IP. Is that possible?

This requires Postfix 2.7 or later. See the updated FILTER
documentation.

Wietse