I am also getting this error when installing BES 4.1 Express.
I am running the following:
Exchange Server 2003 as mail server
BES 4.1 Express on seperate server W/SQL database on seperate server
Since I am running BES on a seperate server from my exchange server, do I need to install ESM on the BES server? Or can I use the ESM on my existing exchange server?
Any help or guidance is appreaciated