Clean Talk Spam Killer
I was having serious issues with spam on several of my sites. I talked with my hosting company and we made sure the SPF records were set properly, along with DKIM and also checked the reverse DNS. I had them install and set up DMARK on my sites as well, and nothing stopped these suckers from spoofing my domains. I installed Clean. Talk, and I looked at my email and had like 10 emails right up until the install. Immediately it caught two and I have not seen any since. Amazing! Great software and it just works!
The install was Sunday night on February 9, 2020, and it is now 10:00 on Monday. I would usually have another 10 emails or so from the same spammer… Gone!
I also installed it on two other sites and their spam is GONE GONE GONE!