sieve VS postwhite

FYI You shouldn't really be using procmail for sorting see the notice at the top of this page. Dovecot has built in seive functionality witch you can use this desktop GUI to manage.

use mailsieve scripts, they are amazing. Checkout sieve originally just a thunderbird addon but you can install it as a desktop app, hosted web application or build your own docker container.

Auto Sort into your Junk folder using email sieve (I use this handy desktop app for easily editing) :

Spam - This isn't that bad as long as you are actually actively adding spam to the spam db. I generally tell people to use Postcreen to cut down on spam bots and use postwhite to whitelist common legitimate email senders.

Use Postcreen to cut down on spam bots and use postwhite to whitelist common legitimate email senders.

The thing I found that helped against 99% of the spam emails was to enable aggressive Postscreen delays with top domain whitelists by using the postwhite script

That and using greylisting with the postwhite script has almost eliminated spam emails to my personal and public domains.

Postwhite - Setting up aggressive Postscreen settings and then make it bearable with postwhite.