I need a bit of guidance on SSL certificates in regards to setting up a home-based web and mail service using osx leopard server. Any help would be greatly appreciated. Just pointing me to a site with the answers would be good too, thanks! I have a couple of domains which I've set up web sites okay and now want email for but am struggling to understand the osx server mail services SSL instructions, which amount to "get SSL Certificate, install SSL Certificate" but doesn't go into any further detail. Basically what sort of certificate do I need just for mail services? Do I need one to secure the actual web server itself too? There's a bit of a choice and some are quite expensive and look like they're for serious e-commerce sites so are they more than I need?: Instant SSL by Comodo In regards to a website, do I need an SSL certificate if I'm just setting up an online forum like this one (to protect peoples' accounts and emails etc), or if I decide to do a bit of online commerce one day using Paypal? Or does the Paypal site handle all that for me?