Kevin A. McGrail skrev den 2018-03-14 03:55:
On 3/13/2018 10:51 PM, li...@lazygranch.com wrote:
I'm getting hit every 10 minutes from this spammer. As you can see I
am
rejecting the message. I wonder if the offending email server doesn't
know the message is being rejected?
Mar 13 23:28:58 centos-1gb-sfo1-01 postfix/smtpd[22153]: NOQUEUE:
reject: RCPT from unknown[113.247.6.67]: 450 4.7.1 Client host
rejected: cannot find your reverse hostname, [113.247.6.67];
from=<sale...@tradepro.net> to=<li...@lazygranch.com> proto=ESMTP
helo=<mail.port25.com>
Have you looked at something like fail2ban that can automate an
iptables
block?
+1
but 450 is not reject, its soft rejecting, with means there is possible
local dns fails
please dont post postconf -n now
