I got Eudora to not crash while sending mail under Panther. Under the Hosts settings, I deselected "Use mail-exchange records" under "Sending Mail". So now I can send you mail once more, fear!
Of course, I was only WITHOUT mail-sending capabilities for the four hours while I was installing/migrating to Panther, and then the four hours I slept. But it seemed like a lot longer.
Speaking of which, I was up until 3 a.m. setting my laptop up for Panther, and I woke up shortly after 7 a.m., and I have a hockey game at 10:20 p.m. tonight. I am not sure how this is going to work.