On BES 5.0.4, it is a bit tricky to add an administrative user. Normal Blackberry users are added under User > Create user, but admin users have to be added from a different menu.
First, login with BESAdmin. Then, you have to go to
Administrator user > Create an administrator user
Then, fill in the fields, which are not self-explanatory:
Display name: Use the display name from Active Directory
User name: Use the AD login name
Domain: Use the AD domain name
Administrator Read more [...]
Unfortunately, Kerio has hidden the Webmail mini, starting with version of Kerio Connect 8.2, but it is still there, you just have to use the following URL to login:
This comes in handy on old browsers or on mobile devices that can't properly display the new Kerio Connect Web Client. The Web Mail mini is using simple HTML.