@Fab: you can easily open a free dummy MobileMe account and use it for 60 days. Then you create a new one for more 60 days and keep testing if needed, etc:

http://www.apple.com/mobileme/pricing

EDIT: and, Fab, imagine adding to the OWB 1.6.2 (or 1.7) the following line:
* now with full Apple MobileMe support

Only if you decided to keep using it more than 60 days, only then you have to pay for additional 12 months.

More SimpleMail reflections:

- I hate brute-forcing problems. And I had to brute-force this basically trying all possible combinations of settings. There was no way to relate "RCPT failed" to not using SMTP auth even after digging on Google

- On top of this, SSL auth still won't work (maybe it simply can't and, yes, I installed AmiSSL) so my "use secure login" (if I remember correctly) checkbox is unchecked which means SimpleMail is sending my password in plaintext over the network... so arguably it's dangerous to use.

-Another thing is, I looked into SimpleMail preferences on disk and it saves password in plaintext in a file -- again a big no-no, it should be at least in some way hashed or encrypted...

[ Edited by mihailod on 2010/1/19 9:00 ]