On 12/03/2011 08:59 PM, Pandu Poluan wrote:
This is new information to me. If you're subscribed to Gentoo-server,
you'll know that I am in the process of setting up a mailfiltering
gateway for my company.
Any resources on this "postscreen" facility? sounds like a very nice
thing to implement.
Rgds,
Postscreen is just part of Postfix; it's a separate daemon added in the
latest version.
This is the official README:
http://www.postfix.org/POSTSCREEN_README.html
and the configuration parameters are documented in the usual place:
http://www.postfix.org/postconf.5.html
Here's the entirety of my main.cf postscreen section for reference. I've
deemed these safe, but you shouldn't enable them without reading what
they do!
#
# Postscreen settings
#
postscreen_greet_action = enforce
postscreen_dnsbl_sites =
psbl.surriel.com,
bl.spamcop.net,
zen.spamhaus.org,
b.barracudacentral.org
postscreen_dnsbl_threshold = 1
postscreen_dnsbl_action = enforce
##
## Deep protocol tests
##
postscreen_pipelining_enable = yes
postscreen_pipelining_action = enforce
postscreen_non_smtp_command_enable = yes
postscreen_non_smtp_command_action = enforce
postscreen_bare_newline_enable = yes
postscreen_bare_newline_action = enforce
