ansaurus

Question

RegEx'ing Hotmail email addresses with C#

Answer 1

+2 A:

This will work:

function bool IsHotmailAddress(string email) {
    var r = new Regex(@"\@(live|hotmail)\.[a-z]{2,3}(\.[a-z]{2,3})?$", RegexOptions.IgnoreCase);
    return r.IsMatch(email);
}

BC 2010-07-21 15:30:19

Indeed. I was too lazy to add the rest of it :P

NullUserException 2010-07-21 15:42:16

this would give false positives for the rare sites like [email protected] or [email protected] which would not be hotmail addresses. You could fix this by changing the [a-z] matches to match any of the tld's ( (co|com|org|edu|net|jp|ca|...) but I think this is overkill and something you would have to add to over time.

BC 2010-07-21 15:51:58

Thanks! I wish I was a RegEx guru too... I just don't get this stuff.

Alex 2010-07-21 17:11:00

*@Alex* Try not to use too many things you just don't get; it makes for impossible-to-debug code. Instead, teach yourself! http://www.regular-expressions.info/reference.html is great.

Daniel Rasmussen 2010-07-21 18:03:49

Thanks, I'll check it out.

Alex 2010-07-21 18:15:24

ansaurus

tags:

views:

answers:

RegEx'ing Hotmail email addresses with C#

related questions