eMail Verifier is a tool for checking e-mail addresses. eMail Verifier performs a serie of checks to validate every e-mail address including, a syntax check, an e-mail address domain check and finally an e-mail address validity check with the server. All those checks take time to perform and sometimes a user may wonder how much time he will have to spend on this, especially when testing big lists. See more at: https://www.maxprog.com/site/blog/post.php?id=470