Email Address Validation (EAV) resources
Our advanced validation checks address format (including valid characters), gets DNS (MX) records, and verifies usernames using SMTP.
An ActiveX/COM component that checks email address syntax, domain, and
username. You can use this component with almost any Windows
development tool, including ASP, VB, .NET, C++, Cold Fusion, Delphi,
Demonstrates how to validate email addresses using HexValidEmail.
Handy expressions for verifying email addresses client-side in web
Explains the basics of verifying email addresses.