[djbusby]

I've used Postgrey, for Postfix, and it's greatly reduced my spam. However, first emails from new folk are delayed a bit.

https://postgrey.schweikert.ch/

[sylware]

grey listing seems to be the only reasonable way to keep the Email in the "free world" (namely where spammers are allowed to do their "thing").

But gmail will do everything to take over the Email using the "spammers" as an excuse.