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Re: Mail spam and virus filtering on Leopard Server

Subject: Re: Mail spam and virus filtering on Leopard Server
From: David Haines <email@hidden>
Date: Wed, 26 Dec 2007 23:58:43 -0500
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On 23 Dec 2007, at 17:48, Gerben Wierda wrote:

I have enabled email spam and virus filtering. I have two questions;
- Is there a way to feed nonrecognized junk mail back to the system to make it learn?
- My virus database is updated 2 times a day. But the status always is "Last update not available". Is there anything I should check?

On Dec 24, 2007, at 8:56 PM, Rene Schaetzl wrote:

I actually did some customizations beyond what Apple offers (in 10.4). Kind of following this great article.

http://www.freesoftwaremagazine.com/articles/focus_spam_postfix

This together with greylisting mentioned in the article god rid of huge parts of spam. So I actually no longer cared to add some more filtering here.

But there is the spamtrainer from these guys you might want to look into http://osx.topicdesk.com/content/view/37/58/

It's postfix. If you're serious at all about using the full capabilities of postfix, start with the topicdesk "frontline spam defense" tutorial.

But you really need and want to understand what it's doing any why.

One correction for that article you linked to, René:

In current versions of Postfix (even what came with 10.4 server), the "reject_unauth_pipelining"

belongs not under smtpd_recipient_restrictions but under smtpd_data_restrictions

See www.postfix.org

http://www.postfix.org/postconf.5.html

http://www.postfix.org/docs.html

NB the "UCE/Virus" section

and in particular, the write-ups from J Seymour, M Wong and J Posluns

Note that you should not install anything (and don't need to), and for that reason and others, adjust carefully for your environment (OS X Server, and

there are key differences between what Apple provides in 10.5 vs. 10.4).

Next stop,

http://www.postfix-book.com

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Follow-Ups:
- Re: Mail spam and virus filtering on Leopard Server
  - From: Chip Mefford <email@hidden>
- Re: Mail spam and virus filtering on Leopard Server
  - From: Rene Schaetzl <email@hidden>

References:
	>Mail spam and virus filtering on Leopard Server (From: Gerben Wierda <email@hidden>)
	>Re: Mail spam and virus filtering on Leopard Server (From: Rene Schaetzl <email@hidden>)

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