Choose what you want to do with the invalid ones
“Even not being a MOPS pro, I was able to quickly and easily install this app. It allowed us to weed out lots of bad emails of all kinds, keep our dbase clean, get great results out of our campaigns, and protect our sender score to avoid being blackballed by ESPs and target company servers. It’s one of the best martech purchases you’ll ever make. Highly recommend it.”