Understanding Cloud Pre-Filter Parent topic

Cloud Pre-Filter service is a managed email security service powered by the Trend Micro Email Security SaaS Solutions. By routing your inbound messages through the service, you can protect your domains against spam, phishing, viruses, and other messaging threats before the threats reach your network.

Mail Flow With and Without Cloud Pre-Filter Parent topic

Without Cloud Pre-Filter, messages containing viruses, spam, and other malicious threats reach your network directly. These malicious messages waste network bandwidth and staff resources for the administration effort of handling malicious messages.
With Cloud Pre-Filter, you can protect your domains against malicious messages coming from outside your network. Cloud Pre-Filter blocks malicious messages before they reach your network.

Cloud Pre-Filter and IMSVA Communication Parent topic

Cloud Pre-Filter uses the SMTP protocol to route messages to IMSVA.
IMSVA uses an HTTPS connection to communicate with Cloud Pre-Filter for command requests, such as creating an account, managing polices related to an account, and retrieving message tracking and report data.

Cloud Pre-Filter Terminology Parent topic

When referring to Cloud Pre-Filter, the following terminology applies.

Cloud Pre-Filter Terminology

Term
Description
Account
The Cloud Pre-Filter account is used to manage Cloud Pre-Filter policies. You must create one Cloud Pre-Filter account before you use the Cloud Pre-Filter service.
IMSVA stores the account information locally after creating an account. IMSVA uses the account information to communicate with Cloud Pre-Filter to complete command requests, such as managing Cloud Pre-Filter policies and retrieving message tracking or report data.
Policy
Cloud Pre-Filter policies apply to your domains. You can create only one policy per domain. When the messages sent to the domain reach Cloud Pre-Filter, Cloud Pre-Filter uses the policy for that domain to determine how to scan the messages and how to route the messages to the domain.
Cloud Pre-Filter rejects all messages to domains that do not exist in the Cloud Pre-Filter policy list.
Cloud Pre-Filter service stores all policies in the cloud.
Inbound Server
Inbound servers of Cloud Pre-Filter are the servers that receive your inbound messages. Cloud Pre-Filter provides the inbound server addresses when you create a domain to change your MX records.