LuKreme wrote:
On 4-Apr-2009, at 16:02, Noel Jones wrote:
Best in smtpd_data_restrictions so you don't reject sourceforge and
others sender verification probes.
That didn't go well:
Apr 4 20:15:28 mail postfix/smtpd[16843]: 60D15118AC14: reject: DATA
from english-breakfast.cloud9.net[168.100.1.7]: 554 5.7.1 Service
unavailable; Client host [168.100.1.7] blocked using
ips.backscatterer.org; Sorry 168.100.1.7 is blacklisted at
http://www.backscatterer.org/?ip=168.100.1.7;
from=<owner-postfix-us...@postfix.org> to=<krem...@kreme.com>
proto=ESMTP helo=<english-breakfast.cloud9.net>
The example showed using an access map that only checked mail
with the null sender.
As you see, using ips.backscatterer.org as a general purpose
RBL is unsafe.
-- Noel Jones
