Eudora SSL Help

To get Eudora to work with the CFRQ.NET ssl-enabled mail servers, you have to stand on your head and sacrifice a chicken. Well, ok, it's not that bad, but there are a number of steps required.

Important Update: there's a buffering problem with Eudora 5.1 (and maybe others); see Network Buffer Size

Network Buffer Size

According to UIUC, The default network buffer size in Eudora 5.1 is not adequate to handle attachments if you use SSL POP. You may experience hangs when downloading attachments. To fix the problem in your current version of Eudora you will need to change the network buffer size:

  1. From Eudora's toolbar, select Tools -> Options
  2. From the Options dialog box, scroll to the Advanced Networking icon in the Category panel.
  3. In the settings panel that now appears, change the number in Network buffer size from 4096 to 40960.
  4. Click OK.

The change in step 3 is the recommended increase to the Network buffer size. If your desktop machine has very limited memory, you can set the buffer size to as little as 16384 (16K) and still be able to successfully download attachments.

As an alternative you can upgrade Eudora to version 5.1.1. Release notes for Eudora 5.1.1 for Windows are available from the vendor.

That should be it, you should now be able to send and receive messages via

Another description of this setup, with screen shots, can be found at

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