On Thu, Dec 10, 2015 at 01:10:52PM +0100, sb wrote:
> We must find a way to reject telnet-like cloud-based e-mails.
A little knowledge is a dangerous thing. You've convinced yourself
that you thoroughly understand more than you do, and have become
noticeably dogmatic about it. You've received the best advice this
list has to offer, the rest is up to you. Good luck.
For the record, the best practice is to use the Spamhaus PBL both
in postscreen and in smtpd. Possibly with additional weighted RBLs
in postscreena and perhaps also DNSWL or similar to reduce FPs.
It won't be perfect, but don't let the perfect be the enemy of the
good.
--
Viktor.
