Why is this step essential ?

Here's why this step is essential:

Outbound filtering:
Without the correctly configured connector, the outgoing flow of your Microsoft 365 email will not be directed through our secure gateways.
This can result in a lack of outbound message filtering, exposing your organization to security risks, such as the unintended propagation of unwanted mail or malicious content.

Relaying outgoing messages :
Connector automation is crucial to effectively managing outbound relaying.
It helps limit delays, lost messages and even delivery errors.

IP address authorization:
Authorizing our IP addresses in the configuration of your Microsoft 365 environment guarantees better communication between your Microsoft 365 servers and our gateways.

Junk mail rule:
Automated creation of the junk mail rule enables spam mail to be classified directly in the junk mail of user accounts.
Remediation :
Authentication with your administrator account enables effective real-time remediation from your message tracking.
This allows administrators to delete messages from user or administrator reports, helping to reinforce the security of your messaging system.


Tags
How to disable high-priority Phish ETR alerts?
How to exclude an email address or domain from ESM outbound filtering routing