These instructions may be slightly vary on different models and OS versions.
However, the server settings remain the same as mentioned on this page
You may also refer Blackberry's KnowledgeBase on the following link: http://stik.in/qS
Skip to step 4 if you have no email accounts on your Blackberry already.
If you are setting up POP configuration:
Email Server:
pop.your-domain-name (eg: pop.demomonkey.org) (For Free Email Service / Email Hosting Plans)
mail.your-domain-name (eg: mail.demomonkey.org)
Use SSL: Do not check this option
If you are setting up IMAP (Recommended) configuration:
Email Server:
imap.your-domain-name (eg: imap.demomonkey.org) (For Free Email Service / Email Hosting Plans)
mail.your-domain-name (eg: mail.demomonkey.org)
Use SSL: Do not check this option
Tap Save.
pop.you-domain-name / imap.your-domain-name (For Free Email Service / Email Hosting Plans) (POP/IMAP)
mail.your-domain-name
Leave SSL unchecked and then tap Save.