hello, as there is source code available, you should be able to update eudora by your own. currently there is TSL patch to enable authentication. that works for me fine, i was able to send and receive mails within eudora. also i askes AI to adapt the code for the german characters, as UTF-8 was not quite supported by eudora 7.1. so you can have a look on this repo: https://github.com/HansWurst81675/Eudora_patches and download the executable (replace the existing exe). that works fine for me.