With Postbox Express having thrown any PPC development and support out of the window, and classifying it as officially obsolete, I came on to MU this morning and found this. After unzipping it it asked to populate itself, and then took about a minute to bring over my fifteen email accounts faultlessly. All I had to do was input the passwords et voila.
A lot, lot faster to load than PBE, (which in turn was far better than Mac Mail), it's email search engine is blisteringly quick.
I also like the very classy read window which offers me the chance to go straight to the owners website link. Plus there's a calendar and to do list built in.
It's so nice, I'm off to Mozilla to donate.
(Setup? Mac PPC G5 1.8ghz dual processor, 4mb ram running OSX 10.5.8).