Just curious as to what people are using in System Config/Mail for RBL? I'm using bl.spamcop.net (I have spamhaus at the firewall level) Never hurts to have more options. TIA Jim..
Usually just some of the defaults that rspamd provides at: https://github.com/rspamd/rspamd/blob/master/conf/modules.d/rbl.conf We use a paid service from Invaluement in our setup aswell.