How do you build this list?Very true. But figured much better to help protect my legit customers and my servers.
Being complained by Spamcop and shut down by DC two weeks ago was not fun. Don’t want to experience this again for me or my customers.
Curious to know how many all you big boys have, since you’re all doing this for many years now.
MW should have a MW internal directory to save all our brothers and sisters.