... I sent an e-mail but it got returned. It's not because of the wrong address or any typing errors so I don't know what else it is. One thing I do know is that it says: SMTP error from remote mail server after RCPT TO:<PERSON@PERSONISENTMAILTO.co.uk>: host mailserver.PERSONISENTTO.co.uk [213.171.216.30]: 554 <PERSON@PERSONISENTMAILTO.co.uk>: Relay access denied I sent a damn e-mail to this person using Outlook and I received the above bloody error BUT when I used MSN to send an e-mail to the same person I didn't receive a mail delivery error! What the hell is going on? It must be something to do with the persons mail server i'm sending too. Please help...