Here you can reliable and truly check email validity online. Email Magnifier is the most reliable free email verifier online. How do we now that Email Magnifier’s address validation is reliable? When we check email address, we collect and provide you the most structured information about the mail address. We developed a special algorithm consisting of several stages of checking and analyzing of email address. We check email address syntax, the domain, all its MX records, and analyze SMTP server behavior. The information you receive from our mail tester service is complete and organized in a way you can easily conclude if it is a real email or not. With Email Magnifier, you can check email validity and get the true result of the email address check online immediately. Email Magnifier is the best free email verifier online. How to check if an email address is valid? To check email validity, simply follow the instructions below.