Please note that we only support the use of Eudora 6.21 or higher as earlier versions have bugs that complicate the connection to our mail server. The latest version can be found at www.eudora.com
Click on Tools and then Options. Change the settings for the Getting Started, Checking Mail, Incoming Mail and Sending Mail screens as follows (replacing my user information with your own)
1.
2. 
Ensure "Required, Alternate Port" is selected under Secure Sockets when Receiving.
3. 
4. 
Ensure "Required, Alternate Port" is selected under Secure Sockets when Sending.