Since POP3 uses a client and a server side, I doubt you can make the Server understand SSL if you just turn all IO::Socket's to IO::Socket::SSL calls. POP3 has limited security when it comes to password sending with apop (which uses MD5). If you wanna use a more secure mail protocol all together, I'd suggest
IMAP.
Greetz
Beatnik
... Quidquid perl dictum sit, altum viditur.