I implemented this method to validate a comma-delimitered email list.

Basically, it splits up the list by "," and then validates each email against a RegEx expression (much like the RegEx .net validator). It uses this expression: "\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"

BUT.. it lets through this: (I used this tester)

"email@domain.com   email@domain.net"

If a user did not put the , in it takes that as one email and it passes the validation above. If you put this into a textbox with the core regex validator then it fails, so I think it is something to do with the matching options.

 if (emailRegEx.IsMatch(address)) return true;

So I want to either change the expression to catch this "email@domain.com   email@domain.net" OR I want to change the method options to tell it to fail if there is more than one match in an instance. 
How do I do this?

Entrepreneur

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