The easiest way to set up your Blackberry is through your carrier's Blackberry Internet Service web site. Here are some common mobile phone carriers in the United States:
If you use a Blackberry with a carrier not listed here, please let us know. If you are unable to log into the web site, contact your carrier for assistance.
Once you've logged in, click Setup Account. Enter your e-mail address and password, then click Next. You'll get a message saying “We were unable to configure this account.” Select “I will provide the settings to add this e-mail account” and click Next, then enter the settings listed here.