:-)
True, of course.
I have looked into other mail clients but not found anything suitable, though that was a while ago.
Don't worry: I do use the feedback to Apple as soon as I can't find a solution on a forum or elsewhere.
As to ”very old, discontinued”, that is to be qualified.
I know some very old things that are still perfectly suitable (myself, for example, still OK at 76).
Or the Lego bricks I played with more than 60 years ago and are now used by my grandson.
One of the worst things in computing these days is the ”obligation” to change every so often, without any good reason. Just fashion. I've often read things like “it has not been updated in five years” as if that is equivalent to food having gone bad. My wife has not been updated in a much longer time.
So, yes, a new version of Eudora would probably look different, but the useful functions would still be good.
There is too much attention to “skin” these days.
Pavlov and his dog: people have been trained to expect something new every October.
But usually it causes me a lot of trouble: functions that have been taken away or have been inaccessibly hidden are the worst.
Mind you, I understand very well the problem of “bloatware”. I can also see the reason for removing something that is simply not used anymore: there are no longer laptops with CD readers. Those few who still need them can buy an external drive, and at least they can do so.
Then there are things that are tried, found bad, and the change reverted, such as the irritating touch bar.
Or the removal and reappearance of the magsafe connector.
Then there are great advances: USB-C being the one I like best.
The other one is the M2 chipset.
But the removal of the independent locale settings (which I reported in a different topic, and to Apple) nearly made Ventura completely unsable to me. Fortunately there is a workaround (the function itself is still there, obviously, but the normal user cannot get at it anymore).
Link preview in Mail is one of the things that should be a switchable option.