Hello,
I am using Postfix 2.9.4 on CentOS 6.3 as a gateway server with the
following postscreen settings:
postscreen_dnsbl_threshold = 2
postscreen_dnsbl_sites =
b.barracudacentral.org*2,
zen.spamhaus.org*2,
psbl.surriel.com*2
postscreen_dnsbl_action = enforce
postscreen_greet_action = enforce
Sometimes I receive complaints from some mail server operators that
barracudacentral causes blocks of mail from their server, and "Very few
email providers use Barracuda for their RBL's, so it is not an RBL we
check very often or rely on".
I remember that, when I had set up this gateway server, I had researched
and found that barracudacentral should be OK.
My questions now are:
* Based on your experience and advice, should I keep the above
postscreen settings? Any suggestions?
* Should I avoid postscreen_dnsbl_sites and only use amavis to make
decisions through scoring? How are you implementing such blocks?
Thanks in advance,
Nick
