SMTP Auth Setup for Eudora 4.3.2
- Open Eudora 4.3.2. Select the Tools menu item and choose Options. If you are on a Macintosh, select Special menu and choose Settings.

Under Category, select Sending Mail.
Put a check in Allow Authentication.
- Press OK.
- Scroll down to Ports (if you are on a Macintosh, it is called Ports and Protocols) in the Options window.
- Enter 587 in the box labelled SMTP Port (25)*
- Press OK and you are done.
* If you do not find an Icon called Ports (or Ports and Protocols), your Eudora installation is missing a required plug-in, called "Esoteric Settings". Just follow these instructions below to install the plug-in:
- Windows
Make sure the Eudora application is not open. Look in your Eudora directory for a directory called "extrastuff". In this directory, there is a file called "esoteric.epi". Just drag and drop this file into the top level of your main Eudora directory. Restart Eudora, and when you go to Tools Menu - Options, you'll see the Ports icon appear in the list.
- Macintosh
Quit Eudora and look in the Eudora Application folder for a folder called "Extras". In this folder is a file called "Esoteric Settings". Drag this file into the "Eudora Stuff" folder, and restart Eudora. Now when you go to Special Menu - Settings, you'll see the Ports and Protocols icon in the list.