Message could not be delivered

The original message was received at Mon, 14 Aug 2006 11:22:01 +0200
from [24.119.237.87]

----- The following addresses had permanent fatal errors -----
[email protected]

----- Transcript of session follows -----
… while talking to host lists.rubyonrails.org.:

MAIL From:“The Post Office” [email protected]
<<< 501 Access denied