i have created a program that will send emails, i followed the protocol for smtp, but when i get to the part of sending the RCPT TO: <email address>, i get a reply of "relay access denied". does anyone know what that means? i don't know if i should match the smtp server address to the receipt address. i mean if i'm sending to a mail.com account then i should be using the smtp server for mail.com. or could i use just any smtp server. is there a way to obtain the smtp server address for a certain email address by just looking at the domain part?
thanks very much