I just tried blogging via email the second time, now with WP2.0.
Still two errors still show up:
1. The email text shows up with new line breaks plus '='
2. German Umlaut are also substituted by somthing like '=4C', which seems to be the alpha-numeric substitute of the letter.
I know, that my WP blog is running wit UTF-8. Thus I tried to send my email in this coding, too. But nothing changed.
The second error could be solved by using the HTML tag e.g. '<.&.a.u.m.l.>' for ä/ae. But still the line break thing is coming up.
BTW, I use a GMX free-mail account.
PS: Have a look on http://www.rt-weinheim.de, where I will sent this topic for a limited time.
Thanks for helping me, Steffen