E-mail address validation/finding using regular expressions

D​ue to the enormous volume of e-mail validati​on methods that are wrong and frustrating to many people who have periods or plus signs in their e-mail addresses, here is the one e-mail regex to rule them all, as a VB.NET string:

Code:

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"((([a-zA-Z0-9!\#\$&#37;&'*+\-\/=?^_`{|}~]+|""([a-zA-Z0-9!\#\$%&'*+\-\/=?^_`{|}~(),:;<>@\[\]\.]|\\[ \\""])*"")\.)*([a-zA-Z0-9!\#\$%&'*+\-\/=?^_`{|}~]+|""([a-zA-Z0-9!\#\$%&'*+\-\/=?^_`{|}~(),:;<>@\[\]\.]|\\[ \\""])*""))@((([a-zA-Z0-9]([a-zA-Z0-9]*(\-[a-zA-Z0-9]*)*)?\.)*[a-zA-Z]+|\[((0?\d{1,2}|1\d{2}|2[0-4]\d|25[0-5])\.){3}(0?\d{1,2}|1\d{2}|2[0-4]\d|25[0-5])\]|\[[Ii][Pp][vV]6(:[0-9a-fA-F]{0,4}){6}\]))"

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Remember to prefix with ^ and postfix with $ when valida​ting an e-mail address, too. Also, if you have a bug (unlikely, because I followed the rules to the letter ;)) then please put it here: https://github.com/minitech/EmailRegex

Finally, an important note: this regular expression does not sup​port comments in e-mail addresses. "Yes\ this\ e-mail\ address\ is\ valid".and(this is a comment)@a If you'd like to supp​ort comments, remove all parenthesized substrings that are not also within quotes before beginning. Regular expression for that coming soon.