I've been using SpamArrest for 15+ years. SpamArrest filters out 99% of spam. I have to whitelist all domains or email addresses the first time I correspond. It

I've been using SpamArrest for 15+ years. SpamArrest filters out 99% of spam. I have to whitelist all domains or email addresses the first time I correspond. It gives legitimate users an opportunity to get through. Worth every penny.