Re: [GTALUG] Spam is basically dead

ac via talk wrote:

1. Bounce when no rDNS (exim/postfix/sendmail/qmail - 2 second conf)

Sometimes people don't have access to configure Reverse DNS (or PTR) as they are sending with a dynamic IP address. This isn't common but at least for GTALUG there are five or six people who host their email from their home on dynamic IP addresses.

2. Use 10+ dnsbl with properly configured spamassasin (cache locally) - with 2 (or more, or less) points per dnsbl listing (five minutes copy & paste for exim/postfix) -> dnsbl from here: http://multirbl.valli.org/

I stopped using SpamAssasin a while ago. I know use Rspamd, Rmilter, and OpenDMARC. I found SpamAssasin was letting in way to much spam and required way to much knowledge to run properly.