shootinglight

Oooo, erhhh, now you are asking! Not quite sure what that means. Is it easy to talk me through it?

This one has totally stumped me. Email account settings on both PC & laptop are identical and the laptop is connected through the PC's internet, but the account only works flawlessly on the laptop! On the PC, it will receive, but it won't send. It won't even attempt it. I immediately get a 'System Administrator' email, title - 'Undeliverable'. In the email it gives the reason: 550 must be authenticated. I have other email accounts on both computers that work fine. All of them are nothing fancy, just basic accounts. Email software: Microsoft Outlook 2003 POP3/SMTP It must be a problem within Outlook as the email isn't getting as far as the big wide world before there is a problem! What am I missing? Many thanks James