New to Retain v3.4, this process provides archive job and server reporting and monitoring services. It is not installed by default unless specifically selected during the installation process. With Retain 4.2 it is a required install to allow Mailbox Error Monitoring to occur.
48080 (TCP) Requires both incoming and outgoing access if on a server external to the Retain Server.
80 / 443 (TCP) Requires Incoming access to reach the R&M Server's web interface.
25 (TCP) If running on a server external to the Retain Server, then it requires outgoing access.