Thank you Graham for your reply and interest.
I also read similar articles but it seems like most articles is speaking about SSL over HTTP so I don't know if that information can be applied to my scenario which involves connecting to a mail-server (using SMTP, POP3 or perhaps IMAP) using a TELNET-session (which requires SSL as authentication).
However, while googling I found something called "stunnel" which I believe (if I understood it correctly) could be handy (
Stunnel - Wikipedia, the free encyclopedia) although I still have to read more about it. I also found this article, related to Windows Mobile :
http://www-unix.oit.umass.edu/~mgilbert/S_Imap.txt which seems to be interesting. However, I am unsure if this solution can be implemented using the Net-framework (and then of course Basic4PPC) or if one needs to do something in C++.
As you can see, I am rather confused. This topic is rather advanced for me and unfortunately no easy solutions seem to be available.
rgds,
moster67