Date: Mon, 3 Jun 2002 22:23:15 -0400 From: "Dan Langille" <dan@langille.org> To: "Jeremy C. Reed" <reed@reedmedia.net> Cc: chat@freebsd.org Subject: Re: postfix: stopping spam sent to user@host.example.org Message-ID: <20020604022415.645D23F3A@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". Damn. I thought I had them. But it's not stopping them. They might have a "To: Undisclosed@host.example.org" but that gets through. I'm not sure why. Here's an example: Received: from 217.56.69.162 (host162-69.pool21756.interbusiness.it [217.56.69.162]) by host.example.org (Postfix) with SMTP id 7E19B7A9E for <dan@langille.org>; Sat, 1 Jun 2002 22:49:18 -0400 (EDT) From: Home Opportunities <homebizops@hotmail.com> To: Undisclosed@host.example.org, Recipients@host.example.org Cc: Subject: Earn $3 to $5 per envelope you stuff! $2,000+ weekly. Sender: Home Opportunities <homebizops@hotmail.com> Mime-Version: 1.0 $ less /usr/local/etc/postfix/header_checks /^to: .*@host\.example\.org/ REJECT /^To: Undisclosed\@host\.example\.org/ REJECT /^Subject: PLEASE CAN YOU ASSIST/ REJECT Clues please? -- Dan Langille The FreeBSD Diary - http://freebsddiary.org/ - practical examples To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message
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