Sometime but not always an account I have gets this error as I send mail out. It is a pop3 mail account. i am unable to find anything on it in Microsoft's KB. I am using Outlook 2003.
Your message did not reach some or all of the intended recipients.
Subject: FW: new client
Sent: 4/22/2004 10:13 PM
The following recipient(s) could not be reached:
'email@example.com' on 4/22/2004 10:13 PM
473 firstname.lastname@example.org relaying prohibited. You should authenticate first
Does anyone know how I can get rid of it?