Am 17.06.2019 um 18:09 schrieb Mike Burger: > On 2019-06-17 06:20, Nicolas Kovacs wrote: >> Hi, >> >> I'm managing several mail servers running CentOS 7, Postfix and Dovecot. >> SpamAssassin is filtering mail nicely, but I'm considering using RBL >> (blacklists) to take some load off the servers. >> >> General question to those of you who use RBL. Which lists do you >> recommend using? > > In my "reject_rbl_client" lines, I've been using: > > - hil.habeas.com > - sbl-xml.spamhaus.org > - bl.spamcop.net > > And in my reject_rhsbl_sender line, I have: > > - ds.rfc-ignorant.org > > Additionally, I've got Postgrey enabled, which does a really good job of > weeding out the spambot desktops and such. Instead of using reject_rbl_client the better choice is to use postscreen within Postfix. That enables the admin to set weighted scores, not rejecting based on a single RBL. Alexander