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Postfix Archives: Re: 2 SMTP Relays, depending on the From: add

Re: 2 SMTP Relays, depending on the From: address

Subject: Re: 2 SMTP Relays, depending on the From: address
From: Martin Schulze (joeyfinlandia.Infodrom.North.DE)
Date: Mon Jan 03 2000 - 17:35:40 CST

Craig Sanders wrote:
> On Mon, Jan 03, 2000 at 11:27:23PM +0100, Martin Schulze wrote:
> > > wietse has already given you a technical solution to the problem,
> > > here's
> >
> > Darn, apparently I missed it. However I have already asked if postfix
> > would be able to do it and got the response that I was the first one
> > needing it, *sigh*
>
> i've still got the thread in my postfix-users folder...i'll forward you
> a copy. summary is to run two instances of postfix with different config
> files.

That would be my implementation as well, though I would have used
a lightwind MTA for the commercial part.

> > > complain to your ISP, they shouldn't be doing that...using the From:
> > > address for relay control is broken-by-design and brain-damaged.
> >
> > It's called policy-based-routing and it is not brain-damaged.
>
> sorry, but it IS a brain-damaged implementation. relay control should be
> by IP address, not by domain name in the From: address. i.e. local IP

What happens if you can't (or don't want) to afford more machines?

I.e. finlandia.infodrom.north.de == finlandia.infodrom.org == stachel.de
     kuolema.infodrom.north.de == kuolema.infodrom.org
     carelia.infodrom.north.de == carelia.infodrom.org

I don't want to run two big servers and don't walk around with two
laptops just because the MTA is too stupid to implement source
based routing.

> > Guess you've got a leased line to your university, though no
> > commercial traffic may pass. However, you've got an own business
> > where you need to write mails as well. Solution a) Get a modem, use a
> > shell login at your provider's, solution b) also get a modem, but use
> > dialup via uucp or ppp and dump & receive commercial mails using that
> > way.
>
> uucp over tcp is a good way of avoiding dumb ISP policies, especially

You forgot that I MUST NOT use the non-commercial leased line for
ANY commercial activities. Thus uucp over tcp would be technically
possible but is not a legal solution. Anyway, you will still need
to split outgoing mail by policy, i.e. commercial -> uucp, non-commercial
using smtp.

> if you can find a uucp provider who uses stunnel or similar to allow
> ssl encrypted uucp connections. see http://taz.net.au/postfix/uucp/
> for an example of how to set this up (a howto on setting up uucp with
> stunnel...it assumes you already know taylor uucp reasonably well).

You're hopelessly missing the point, sorry.

Regards,

        Joey 

-- 
Never trust an operating system you don't have source for!

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