I have a formmail with System.Net.Mail; namespace whereas I need the recipient to be the administrator receiving the message and also the user that's using the form using System.Net.Mail;
......
string Email = Request["Email"]; //create the mail message MailMessage mail = new MailMessage(); 
//set the addresses mail.From = new MailAddress("mailer@mydomain.com");  mail.To.Add("admin@mydomain.com,' + Email + '"); // this renders The specified string is not in the form required for an email address erro Thanks for help Ed Norton

Go to the complete details ...