if you’re like me, you’ll want to use your blackberry with your mail server to send and receive all of your spam messages. by default, zimbra collaboration suite is setup secure enough that a bis (blackberry internet service) server will not be able to connect to your box and push email to your phone, but there is a work around.
warning: the following howto will cause your passwords to be sent as clear text which is not recommended
1. log into the admin page by going to https://mail.<yourdomail>.com:7071
2. select your server under configuration > servers
3. on both the imap & pop tabs, check
enable ssl for imap/pop3 service
enable clear text login
save the information and exit the admin page. now all you have to do is head over the your service providers bis site and follow the instructions on setting up your email.