Marketing emails sometimes get routed to spam boxes and do not reach the intended recipients, especially without a feature-rich email validation API tool. An email validator API addresses common ...

When sending marketing, promotion or business-to-business emails, you want to confirm that the address is legitimate and clients will receive your messages. Instead of waiting for the dreaded "MAILER ...

How do you find out if a user has entered a valid email address? Do you check for an at-sign, or is it more complicated? For many developers the answer is a regular expression, a little bit of code ...

The Internet Engineering Task Force (IETF) document, RFC 3696, “Application Techniques for Checking and Transformation of Names” by John Klensin, gives several valid e-mail addresses that are rejected ...

Twitter account setup requires a valid email address so there's a way to contact you when you have new account activity -- new followers, a mention or a new direct message, for example. If you're ...