Thank you for you reply.i was getting disapponted to see a reply for my question.
I contact my host they told me they set my domain name for IMAP and POP3 mails on my server and i should use CDOSYS for writting mail program.but there is a question:
i used CDOSYS in asp programms befor and not sure if i can use it in the same way in asp.net programms(vb
).what is its namespace?should i use system.web.mail as before???or it has another namespace?
thank you again for your help