EmailValidation
A simple (but correct) .NET class for validating email addresses.
Supports mail addresses as defined in rfc5322 as well as the new Internationalized Mail Address standards (rfc653x).
Other Implementations:
If you need an implementation in something other than C#, perhaps one of the following ports will be helpful:
- javascript by Pavel Azanov
- pascal by Ugochukwu Mmaduekwe