Alias exapnsion and local_domains in Amavis

Hans van Kranenburg · *nix forums beginner Joined: 27 Mar 2005 Posts: 23

Hi all,

I'm setting up Postfix/Amavis/Spamassassin on a box which will recieve
mail for about 30 domains in the near future. So the majority of email
which is handled by postfix is incoming email from the internet. Some
people will use smtp auth to relay mail, squirrelmail sends mail and
some websites will generate outgoing email eventually.

It's almost working fine, but:

1. Amavis uses 'local_domains' (perl hash lookup table) to separate
incoming/outgoing mail and so decide about inserting spam-related
headers only for incoming mail.
2. I want Amavis to add header lines and insert **SPAM** into the
subject of all incoming spam, whether its's delivered locally to cyrus
or travels further on the internet (rewritten by virtual_alias_maps)

But:
Alias expansion in Postfix occurs before mail is handled over to Amavis,
so when I use the list of domains that this box is MX for, it's not
sufficient, and all virtual_aliased email remains untagged because
amavis sees only the new email address/domain...

What can I do?
- Tell Amavis to tag/insert headers on each incoming *and* outgoing mail
(=quick and dirty fix?) I trust the local users, so it's not necessary
and it's unwanted letting SA add the stuff to all emails that originate
from this machine.
- Do the alias expansion *after* amavis does it's work, so Amavis
compares the domain before-alias-expansion-kicks-in with it's
local_domains table... Is that possible, or does something else get
screwed up?
- Anything else?

Thanx!
Hans van Kranenburg,
The Netherlands

mouss · *nix forums Guru Joined: 27 Feb 2005 Posts: 1947

Hans van Kranenburg wrote:

Hans van Kranenburg · *nix forums beginner Joined: 27 Mar 2005 Posts: 23

mouss wrote:

Google