Re: filtering mail to subdomains?

1 msg	Postfix authentication against ActiveDirectory
9 msg	blocking mail with identical 'From' and 'To' fi...
2 msg	address_verify_map types
11 msg	mails always get recognized as spam
4 msg	Spam/virus blocking with regexp_header?
2 msg	changing relay host to a non std port
5 msg	Possible verify.db corruption...
2 msg	search in verify.db
7 msg	Postfix Daemon status and statistics
5 msg	Discard instead of logging
5 msg	[/var/lib/imap/socket/lmtp]: Permission denied
3 msg	Postfix - Active Directory
3 msg	User unknown in local recipient table
2 msg	mail address begins with a hyphen.

filtering mail to subdomains?
\ Jim John (27 Apr 2007)
. \ mouss (27 Apr 2007)

3 msg	mailing list software
4 msg	sles 10 postfix
5 msg	canonical rewrite not happening
2 msg	'Proxy' mail server for MX
2 msg	Postfix upgrade failure

Subject:	Re: filtering mail to subdomains?
Group:	Postfix-users
From:	mouss
Date:	27 Apr 2007

Jim John wrote:
> Hi all. We run a small website at
> http://globalwarmingawareness2007.org.uk and have
> subdomains such as
> news.globalwarmingawareness2007.org.uk and
> users.globalwarmingawareness2007.org.uk. Now one of
> the subdomains is getting spammed to death, so we need
> to filter out the mail for only this subdomain. How
> can we do that using postfix or do we need to use
> amavis? We don't want to install more packages than we
> need because it's a small website. So right now, we
> just have postfix running without any special
> databases or other packages. Thank you.
>

you can tell amavisd-new which domains to filter.

if you want to skip amavisd in postfix, you'll need multiple instances
and use transport_maps instead of content_filter.