Validating email address in c doubleyourdating

The only way to test that an email really exists is to send and email and have the user verify they received the email by clicking a link or entering a token. Write(email " is incorrect"); For more info go read about it here: C# – Email Regular Expression Also, this checks for RFC validity based on email syntax, not for whether the email really exists. Text)) The regex classes are located in the namespace System. To make them available, place at the start of your source code. Ignore Case); public static Regex _regex = new Regex( @"^([a-z A-Z0-9_\-\.] )@((\

Regex(@"^[a-z A-Z][\w\.-][a-z A-Z0-9]@[a-z A-Z0-9][\w\.-]*[a-z A-Z0-9]\.[a-z A-Z][a-z A-Z\.]*[a-z A-Z]$"); //txtmail is name/object of textbox if (txtmail. Length 0){ //r EMail is object of Regex class located in System. I am trying to put validation in text field containing email address.What is to be added in string "email Reg Ex" to limit the user from inserting three dots in email address or what I have to write in method for same.I have also found stuff that would use telnet, but again not consistant and often will reject making the telnet connection.For some reason, i think that the blackbox of hexillion will be the best option.

Leave a Reply