Prev: Rejecting invalid email addresses with SMTP relay/forward
Next: Email service providers
From: Wietse Venema on 1 Jan 2010 10:29
ram:
> On Thu, 2009-12-31 at 09:33 -0500, Wietse Venema wrote:
> > ram:
> > >
> > > On Wed, 2009-12-30 at 20:43 -0500, Wietse Venema wrote:
> > >
> > > > ram:
> > > > > I need a sender dependent smtp service for my shared postfix servers
> > > > > This is similar to what was discussed in the thread a month ago
> > > > > http://www.mail-archive.com/postfix-users(a)postfix.org/msg18419.html
> > > > >
> > > > >
> > > > > This is because some of our clients require a dedicated outgoing IP
> > > > > ( for sender accreditation )
> > > > >
> > > > > I was thinking of a solution using a FILTER. But unfortunately FILTER
> > > > > does now work without a destination apparently
> > > >
> > > > Maybe you can explain the problem, instead of the solution.
> > > >
> > >
> > >
> > >
> > > The requirement is that the outgoing mail for every sender-domain should
> > > be using different bind-ips dedicated to sender domain
> >
> > The supported solution is sender_dependent_default_transport_maps,
> > available with Postfix version 2.7. The FILTER primitive serves
> > a different purpose: running mail through a fixed content filter.
> >
> > Wietse
>
>
> Thanks Wietse,
>
> Do you have any pre-release version. Its ok even if its not complete. I
> could possibly venture to finish it at least for my purpose.

That would be postfix-2.7-20091209 (the feature has been available
since late November).

> I *have to* anyway patch my server with this functionality.
>
> Postfix with some of my own trivial patches is already running fine in
> production on some of my servers (Many thanks to the extremely
> structured way the code is written .. admittedly it was not too much of
> an effort ) I guess I can risk running some more untested code.

The other option is to use sender_dependent_relayhost_maps, where
each "relayhost" is a different Postfix instance that is bound to
a different IP address. This uses a bit more CPU and disk I/O
compared to the Postfix 2.7 solution, but it does not require
patching.

Wietse

First  |  Prev  | 
Pages: 1 2
Prev: Rejecting invalid email addresses with SMTP relay/forward
Next: Email service providers