foo+bar@ addresses, procmail, and postfix

[Dan Langille]

On 9 Apr 2003 at 4:43, Terry Lambert wrote:

> Dan Langille wrote:
> > > But either way, you need to modify the MDA invocation by the MTA,
> > > on local delivery.
> > 
> > Done.  And how I did that was in my original message.
> 
> By using procmail on all local mail.  8-(.

Yep, which is all I've found so far.

> > > That's because mail.local doesn't take or pass on optional
> > > arguments to programs invoked in .forward files.  It's an
> > > MDA that doesn't support that.
> > 
> > But Postfix does.
> 
> Postfix is not a local delivery agent.

True, damn acronyms.

> > I'd rather disturb the existing setup as little as possible.
> 
> Understood.  I thought perhaps the reason for this was that it
> was being hosted for you, and that your "procmail everything"
> was just a proof-of-concept.

Sorry, no, it was trying to find out how to do it.

> > > > Any comments?  Ideas?  Improvements?
> > >
> > > Don't run procmail globally.  Replace your mail.local, if you need
> > > to, but don't run procmail globally.
> > 
> > I'm the only user on this system.  I'd rather not replace
> > mail.local.
> 
> Well you have, with procmail.  8-).  But if you're the only user, then
> it doesn't matter.

True.  I have.  If it's that each, perhaps all I need to do is change 
this line in the Postfix config file:

mailbox_command = /usr/local/bin/procmail -a "$EXTENSION"

> What should probably be noted is that this will not work for
> people whose email service is being hosted by someone else,
> since hosting providers tend to frown on changes to global
> mail configurations.

Agreed.  What I'm doing isn't for most people.

> If you're not willing to replace mail.local as the local MDA,
> then I guess you've got the best you are going to get for this.

But I just got told (by you) that I already have done this. ;)  I've 
been using procmail because it has worked for me in the past and my 
work has always been on machines over which I have full control.

I'll poke around the Postfix website and mailing lists and see what 
mail.local replacements have been used/recommended.

cheers.
-- 
Dan Langille : http://www.langille.org/