Check Valid Email Address c#
private static bool IsValidEmailAddress(string EmailId) { const string pattern = @"^(?!\.)(""([ ^""\r\\ ]|\\[ ""\r\\ ]) *""|" + @"([-a-z0-9!#$%&'* +/=?^_`{|}~]|(? <!\.)\.)*)(?<!\.)" + @"@[a-z0-9][\w\.-]*[a-z0-9]\.[a-z][a-z\.]*[a-z]$"; var regex = new Regex(pattern, RegexOptions.IgnoreCase); return regex.IsMatch(EmailId); }