Email account works on one PC & not the other!

[shootinglight]

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

[ringfinger]

Can you ping the outgoing server address from the PC and get a response?

[shootinglight]

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

[ringfinger]

Basically what you're doing is calling 'Marco' and the server should reply with a 'Polo' to put it in ridiculous terms, lol. Open up your command prompt (Start > Run > Type "cmd" w/o quotes) Then type ping and the server address which you entered into outlook. So it'll look something like this... ping outgoing.comcast.net ...for example, and if you get a reply back from the server you know its gotta be some configuration issue and not a connection to the server.

Edited November 28, 2005 by ringfinger