The BlackBerry Message icon on your desktop combines all of your messages in one “convenient” view, that is that you get all messages shows up in one list. If you have more then one email account on your BlackBerry you can wade trough a long list and it makes it hard to separate your work account with your private ones.
In my quest today to separate the accounts I have found the following solution(s);
BlackBerry Enterprise Server 4.1.5 and up
If you are on BES 4.1.5 or 4.1.6 then there are good news for your BlackBerry users. RIM has a feature build in, but turned off by default, which creates a message icon on your users BlackBerry just for the BES account. All you need to do, according to this Technote titled “Turn on or turn off the Enterprise-Only Message Application icon in BlackBerry Enterprise Server software version 4.1.5“, is to run a simple SQL command.
I have had some problems getting this to run at first, but then figured out that my database connection is different. If you have the BES installed with the default settings you might have to add the “-n” configuration to the command line. Thus mine looked like this:
bbdbupdate -n IM-2800\BESDB -db BESDB -input EnableBESOnlyApplication.sql
(where as the “IM-2800″ part has to be modified for your setup).
Afterwards, simply “Resend Servicebooks” to your BlackBerry users. They will get an additional Message Icon, but this time only with the messages on your BES server.
Commercial Approach
Empower is a BlackBerry software company and they offer a small application for $19.95 called “Empower BES Mailbox“. With it you will achieve the same as above.

