550 error 2 email addresses

Outlook379
I have 2 email accounts in use within Outlook 2003 and I can not get the

secondary to send email. (The other 3 operations are fine.) I get a 550

every time. " 550 relaying mail to domain.com is not allowed". I have

verified the SMTP login information is correct. My confusion is that is

states that it is trying to relay mail to address 1. I am attempting to mail

from address 2 and get an immediate rejection.



Please help.


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