Date: Fri, 31 May 2002 18:18:35 -0400 From: "Dan Langille" <dan@langille.org> To: chat@freebsd.org Subject: Re: postfix: stopping spam sent to user@host.example.org Message-ID: <20020531221926.1A5A23F35@bast.unixathome.org> In-Reply-To: <Pine.LNX.4.43.0205311238580.14075-100000@pilchuck.reedmedia.net> References: <20020531193427.DE4BC3F35@bast.unixathome.org>
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On 31 May 2002 at 12:39, Jeremy C. Reed wrote:
> On Fri, 31 May 2002, Dan Langille wrote:
>
> > I'm using postfix. Is there a way to stop this spam? i.e. block all
> > mail with a TO: field containing @host.example.com.
>
> Have a look at your postfix's main.cf and read the small section about
> "header_checks".
Ahh, thank you. Easily done. For future readers, in
/usr/local/etc/postfix/main.cf, I've added this line:
header_checks = regexp:/usr/local/etc/postfix/header_checks
and header_checks contains:
/^to: *@host\.example\.org/ REJECT
Then do a "postfix reload".
Here is a sample rejection message:
May 31 15:55:05 m20 postfix/cleanup[46233]: D37BB7A8D: reject: header
To: <dan@host.example.org>; from=<dan@example.com>
to=<dan@host.example.org>;
I can see myself using this feature quite a bit. Thanks again.
--
Dan Langille
The FreeBSD Diary - http://freebsddiary.org/ - practical examples
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