Question

I am using ^[\w-\.\+]+@([\w-]+\.)+[\w-]{2,4}$ to validate email address, when I use it from .aspx.cs it works fine to validate IDN email but when I use it from aspx page directly it doesn’t work.

return  Regex.IsMatch(
                email,
                @"^[\w-\.\+]+@([\w-]+\.)+[\w-]{2,4}$",
                RegexOptions.Singleline);

the ID that I would like to validate looks like pelai@ÖßÜÄÖ.com

I am too bad at regex do you guys know what am I doing wrong?

Answer 1

You may want to take a look at regexlib.com, they have a fantastic selection of user-created content to do these extremely commont types of matches.

http://regexlib.com/Search.aspx?k=email