Hi wiz101,
Welcome to the Support Communities!
SSL stands for "Secure Sockets Layer." It is a protocol that your email service provider may use to provide communication security over the internet.
At the bottom of the article you referenced, there is a list of questions you should be able to ask your email service provider. Contact them to find out what your settings are for your account.
iOS: Adding an email account
http://support.apple.com/kb/ht4810
iOS: Adding a new email account can take time to verify, depending on the ISP's security settings
http://support.apple.com/kb/ht2155
If you tap Yes to the question "Do you want to try setting up without using SSL" - it won't hurt anything. If your email provider does not use SSL, then this may help you finish the setup of your email account on your iOS device.
Cheers,
- Judy