Inorder to send mails you need to give username and passowrd of the mail domain. ex: mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1"); mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername",ConfigurationSettings.AppSettings\["SMTPUSERNAME"]); mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword",ConfigurationSettings.AppSettings\["SMTPPASSWORD"]);

Can anybody give tips to develop chat server

Can any give the GDI+ programming in asp.net,c# to Display a big image as a small image without changing clarity. please help me.