Master Capability Matrix

Master Server Capability Matrix
Child servers inherit Master capabilities

Max Domains, Networks, Objects
Managed policy handlers
Max Child Servers
Additional cluster members
Max Administrators
Admins, reviewers, managers
Max Email
Number of email messages
Integrated Help
Portal Supported
Disaster Recovery
Automatic Updates
Custom Spam Rules
Child Supported 
Backup to S3 Cloud   
Email Archiving   
Resource Monitor