Developing ASP.NET 2.0 app that works fine at work and did work fine when I copied it to my home PC.
But now it still works fine at work but when I copied the files back on my home PC and run the app I get a login screen which I don't get at my work PC. Then I get the errror "HTTP 401.1 - Unauthorized: Logon Failed" any advice appreciated.
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions.
Consider email address RFCs:
Look at HTML5 form input element (with type=email) regex pattern: