How do I validate email address formatting with the .NET Framework?

Question

I want a function to test that a string is formatted like an email address.

What comes built-in with the .NET framework to do this?

This works:

Answer 1

You could use a Regex to do this.

There have been written a lot of articles about it; this came up when I searched google for 'regex to validate email address': Find or Validate an Email Address.