Somehow I am having trouble sending emails from one account. When I ask the SMTP module to send a test email and I then check the logs I see:

*Error sending e-mail from info@foo.com info@foo.com to tony@tony-mac.com tony@tony-mac.com : SMTP Error: The following recipients failed: tony@tony-mac.com tony@tony-mac.com*

*SMTP server error: sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1) *

Why? Thanks.