[CentOS] Use postfix and spamd on CentOS 6 - looking for a shortest guide

[Adam King]

Thanks :) 

Adam King 
IT Systems Administrator 
Skipton Girls High School 
01756 707600 
www.sghs.org.uk 

----- Original Message -----
From: "Reindl Harald" <h.reindl at thelounge.net>
To: "CentOS mailing list" <centos at centos.org>, kinga at sghs.org.uk
Sent: Monday, 11 August, 2014 5:55:22 PM
Subject: Re: [CentOS] Use postfix and spamd on CentOS 6 - looking for a shortest guide


Am 11.08.2014 um 18:43 schrieb Adam King:
> Can you explain why you'd use milter over spamassassin? Genuinely interested as we could certainly get better spam filtering... 

just becaus eit is the only way where you can
*block and reject* spam instead still deliver
it with a special subject

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

without a milter your only choices are:

* deliver crap
* get a backscatter and get blacklisted
* drop messages while pretend you accepted them and go to jail

"-r 6" = reject with a score of 6 and bigger
spamass-milter -p /run/spamass-milter/spamass-milter.sock -g sa-milt -r 6

> ----- Original Message -----
> From: "Alexander Dalloz" <ad+lists at uni-x.org>
> To: "CentOS mailing list" <centos at centos.org>
> Sent: Monday, 11 August, 2014 5:01:16 PM
> Subject: Re: [CentOS] Use postfix and spamd on CentOS 6 - looking for a shortest guide
> 
> Am 2014-08-11 13:38, schrieb Alexander Farber:
>> Hello fellow CentOS-users,
>>
>> on the net there are lots of Spamassassin related HOWTOs - describing 
>> how
>> to create a shell script for Postfix and how to install Spamassassin 
>> and
>> start its spamd daemon - step by step. Additionally antivirus setups 
>> are
>> described...
>>
>> But I have a strong feeling, that this is unneeded on CentOS 6 - 
>> because
>> there are already preconfigured stock packages for postfix and 
>> spamassassin.
>>
>> So I have installed the both packages and I have configured postfix (it
>> works fine).
>>
>> Also I have started the spamd (and can see it in "ps uawx") with:
>>
>>     # chkconfig spamassassin on
>>     # service spamassassin start
>>
>> So I'm just missing the connection between postfix and spamd.
>>
>> Could anybody using these 2 programs on CentOS 6 please share it with 
>> me?
> 
> [ ... ]
> 
> Do yourself a favour and use a milter instead of piping each single mail 
> through spamassassin.
> 
> http://pkgs.org/centos-6/epel-x86_64/spamass-milter-0.3.2-3.el6.x86_64.rpm.html
> 
> Then add something like
> 
> smtpd_milters = unix:/var/run/spamass-milter/postfix/sock 
> inet:127.0.0.1:8891
> non_smtpd_milters = $smtpd_milters
> milter_default_action = accept
> 
> to your Postfix' main.cf and configure the milter flags in 
> /etc/sysconfig/spamass-milter