This is the error that I am getting when trying to send and recieve
mail with Entourage.
Authentication failed because Entourage doesn't support any of the
available authentication methods.
Send & Receive problems can be complex to solve, but generally these
solutions apply:
If you can receive but not send then you have a bad SMTP configuration
If you can send but not receive you have a bad POP or IMAP configuration
You can try re-entering info.
You can delete account and create a new one.
Using copy/paste can result in an extra space being added. Type carefully.
Check your Keychain for corruption.
For details see
<
http://www.entourage.mvps.org/troubleshoot/send_receive/index.html>
I like to use tcpflow for connection problems. It's easy to install and you
can see the traffic between your server and Entourage to see what is
happening. <
http://www.entourage.mvps.org/troubleshoot/tcpflow.html>