From: Ralf Hildebrandt (Ralf.Hildebrandtcharite.de)
Date: Sun Jun 01 2003 - 18:06:07 CDT

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* Joshua Myles <jamylesmtu.edu>:

> > So:
> >
> > postmastermail.bar.foo.edu -> root
> > root -> root$myorigin
> >
> > Everything works as expected.
>
> Okay, I think I understand better the scope of $myorigin. So let me take a
> step back and better explain what I'm trying to do with Postfix.

Basically:

roothost -> roothost.$mydomain
root -> root$myorigin

> mail.bar.foo.edu handles local delivery for some foo.edu users
> (userfoo.edu). For these users, there is an alias on the MX for foo.edu
> (mail.foo.edu) that forwards their mail to usermail.bar.foo.edu.

Like here. Hauptpostamt distributes the mail to postamt1 and (urgh)
the Exchange mail-loss-system

> This is complicated by the fact that there is no (and won't be an) MX
> for bar.foo.edu, and mail.bar.foo.edu also handles outgoing mail for
> hosts in baz.foo.edu and qux.foo.edu.
>
> Ideally, mail sent to userfoo.edu (whose mail is handled by
> mail.bar.foo.edu) from host1.bar.foo.edu (which relays through
> mail.bar.foo.edu) will be delivered without looking up the MX for foo.edu

Use transport_maps

> and using the alias on that MX (which just points back to mail.bar.foo.edu
> anyway). Also, all mail going through the mail.bar.foo.edu relay should look
> like it came from userfoo.edu, not usermail.bar.foo.edu.
>
> So, if I make $myorigin = mail.bar.foo.edu, I'll need to do some address
> rewriting or something for non-local users. If I leave $myorigin = foo.edu,
> I'll need to have usermail.bar.foo.edu aliases for all the local users (I
> think), which seems kind of ugly.
>
> Sorry for the confusing explanation--there's probably a simple solution and
> I've just confused myself out of seeing it. Thanks for the pointers so far.

--
Ralf Hildebrandt Ralf.Hildebrandtcharite.de
my current spamtrap spamtrapcharite.de
http://www.arschkrebs.de/postfix/ Tel. +49 (0)30-450 570-155
When the going gets weird, the weird turn pro.

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