Email Sending Controls (Office 365)
What it does: Limits the recipient domains allowed for outbound emails sent through the web version of Office 365; sends to any domain not on the approved list are blocked.
How to set up:
- Toggle the master ON/OFF switch to ON.
- Expand the Allowlist sub-section (click the ▼ chevron).
- Add each approved recipient domain users are permitted to email.
- Save — outbound Office 365 web emails to any domain not on the Allowlist are blocked.

