Connection filter

TL;DR

1. Edit your Connection Filter in protection -> connection filter. Add our current IPs list: IPs

Settings

1. Access the current Microsoft 365 Exchange admin center.

   Exchange Admin Center (opens new window)

   

2. Go to connection filter in menu: protection -> connection filter.

   Select your Default. Click Edit.

   Reference (opens new window)

   

3. In connection filtering -> IP Allow list.

   Click +.

   Add our current IPs list: IPs.

   

4. Click Save.

   

5. Click Ok.