There are several reasons why email verification is useful for your business:
Remove repeating email addresses from your list to avoid useless spamming.
Catch spam-trap honeypots before sending it an email and get blocked.
Mail server validation
Remove email addresses that don’t have a valid mail server to avoid hard-bounces.
Automatically fix common typographical errors in domain names or extensions.
Each email is validated using at least two different sources to outsmart Catch-All addresses.
No more info@ or help@ email addresses on your next email marketing campaign.