Security Agents and Messaging Security Agents (Advanced only) automatically perform the following updates:
Immediately after installation, the agents update from the Security Server.
Each time the Security Server completes an update, it automatically pushes the updates to agents.
Each time an Update Agent completes an update, it automatically pushes the updates to the respective Security Agents.
By default, scheduled updates run:
Every 8 hours on In Office Security Agents
Every 2 hours on Out of Office Security Agents
By default, Messaging Security Agents run a scheduled update every 24 hours at 12:00 AM.