From AppSumo’s website:
As anyone who’s ever tried eating a jumbo jawbreaker will tell you, bigger isn’t always better.
Same goes for your email list size: If your emails are going to the wrong people or piling up bouncebacks, then it doesn’t matter how much you send.
Ready to boost email deliverability and maintain sender reputation with a simple way to scrub your list clean of bogus toothaches?
Meet Email List Validation.