Authenticated SMTP in C#
// send smtp from from c#/.net
System.Web.Mail.MailMessage message=new System.Web.Mail.MailMessage(); message.Fields.Add( "http://schemas.microsoft.com/cdo/configuration/smtpauthenticate",1 ); message.Fields.Add( "http://schemas.microsoft.com/cdo/configuration/sendusername","SmtpHostUserName" ); message.Fields.Add( "http://schemas.microsoft.com/cdo/configuration/sendpassword","SmtpHostPassword" ); message.From="from e-mail"; message.To="to e-mail"; message.Subject="Message Subject"; message.Body="Message Body"; System.Web.Mail.SmtpMail.SmtpServer="SMTP Server Address"; System.Web.Mail.SmtpMail.Send(message);