550 Spam check failed for recipient's address

[lkinninmont]

I am unable to send emails to anyone outside of my office domain regardless
of which account I use (office or private email accounts). I consistently
recieve an immediate 550 Spam check failed for recipient's address error.
There are no policies setup in my domain.

 

[Diane Poremsky [MVP]]

what antispam application are you or your employer using?

 

[lkinninmont]

Diana, I see you submitted a response but I get an error on page and am
unable to view it. Please try again

 

[lkinninmont]

I'm not using any antispam application. I do have norton installed but I get
the error when it is disabled as well. I also uninstalled norton but the
problem persisted. I am on a fresh install of Vista (oem) with Office Pro
2003. I have norton installed but nothing else.