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 ...

I tried to sign-on to HealthCare.gov using my govexec.com and hotmail.com email addresses today and was told that both were not valid, blocking me just three screens into the process. Folks, I have ...

In a move that may not please Postmaster General Megan G. Brennan, California Assembly Member James Gallagher has introduced a bill that would effectively require every limited liability company and ...

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 ...

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 ...

A Web-based email service that lets anyone create and use a temporary email address. For free reports and software, websites often require users to sign in with a valid email address. The site then ...