550 relaying to <[email protected]> prohibited by administrator

G

Guest

I have set up an account with my ISP via Outlook 2003.
I have just tried to send an e-mail and got the above error and the message
was not sent.
I have checked the POP/SMTP settings and they seem to be ok.
Ran the test and all came back ok.
Any ideas please?
 
V

Vince Averello [MVP-Outlook]

Are you connected to the ISP whose network the SMTP server you're trying to
use is on?
 

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