Size of Messaging Server Binaries
From MsgServerDocWiki
System size required to execute notwithstanding, what is the footprint of the installed Messaging Server 6.3 binaries?
Per the Messaging Server 6.2 Release Notes, 1 GB for production deployment or 500 MB for evaluation installation. You also need adequate space for message store, database configuration directory, and log files, depending upon your site size.

