I'm really hoping someone can help me with this problem:
I have a Mr Site email address, I'm trying to make it work with outlook 2007 and I'm using Sky Boradband. I can not or the life of me get it all to work happily. I've had various error messages but now I'm getting this error message as a reply email
Your message did not reach some or all of the intended recipients.
Subject: RE: XXXXXX
Sent: 03/07/2010 01:38
The following recipient(s) cannot be reached:
'XXXXXXXX XXXXXX' on 03/07/2010 01:39
503 This mail server requires authentication when attempting to send to a non-local e-mail address. Please check your mail client settings or contact your administrator to verify that the domain or address is defined for this server.
Please can someone give me some advice!!