Activating Mailnow 6 license with HTTP Proxy
In case of the Mailnow 6 server is not
configured to have internet access, HTTP Proxy can be configured to allow
Mailnow to connect to license server so it can check and activate license for
Antispam and Antivirus feature.
By login in as admin, General>>General. Change
the Proxy Host/Port to match your configuration.

After configure the HTTP Proxy, proceed to General>>License to activate/deactivate it.

HTTP Proxy option also will be used by
Antispam and Antivirus Updates. Below is the logs for Antispam and Antivirus
updates.
Antispam Update

Antivirus Update