Hi,
If you want to secure data transport you use SSL (Secure Socket Layer)
certificate. One of most common use it securing HTTP traffic and we get
httpS, but it is not use. You can also use it for protecting POP3 (POP3S),
IMAP (IMAPS), etc.
If you want to use SSL to protect your data you will have to use application
that knows how to use it (e.g. IIS, IE, Outlook, Outlook Express, etc),
while e.g. IPSec that also secures data is not application dependent.
I hope this helps,
Mike
