Problems with Outlook / @Terra

Hey 

review the spam filter policy, please follow the steps below

1. Sign in to the Microsoft 365 Admin Center
   Go to admin.microsoft.com and log in with your admin credentials.
2. Navigate to Exchange Admin Center
   In the left-hand menu, select Admin centers > Exchange.
3. Go to Protection > Spam filter
   In the Exchange Admin Center, select Protection from the left sidebar, and then choose Spam filter.
4. Edit the spam filter policy
   Under Spam filter policies, select the default policy (or create a new one if needed), and click the pencil icon to edit.
5. Add allowed senders
   Scroll down to the Allow lists section.
   Click + Add to add a domain or email address.
   Enter the email address or domain you want to whitelist.
6. Save the policy
   After adding the email or domain, save the changes.