...
Typically, this record must be updated in the system of the vendor that manages your institution's domain.
Configure Connector
Log in to the Microsoft 365 Admin Center
Under Admin Centers click Exchange
In the left-hand menu click mail flow
At the top click connectors
Click + Add a connector
Choose Connection from Your organization's email server:
Choose Connection to Office 365
Click Next
In the Name box enter Campus Cafe
In the Description box enter a description such as "connection to Campus Cafe for email."
Under What do you want to do after connector is saved? Check Turn it on and check Retain internal Exchange email headers
Click Next
Select the radio button next to “By verifying that the IP address of the sending server matches on of these IP addresses that belong to your organization”
Enter 3.132.35.147
Click the + icon
Enter 3.18.151.171
Click Next
Click Create connector/Save, if you have already created a connector for Campus Cafe
To determine where your SPF records are managed:
...
Log in to the Microsoft 365 Admin Center
Under Admin Centers click Exchange
In the left-hand menu click mail flow
Click Rules
Click the + icon and choose Bypass spam filtering
In the Name box enter Campus Cafe
In the Apply this rule if... choose The Sender... > IP address is in these ranges or exactly matches
Enter 3.132.35.147
Click the + icon
Enter 3.18.151.171
Click OK
Click Save
Configure Connector
Log in to the Microsoft 365 Admin Center
Under Admin Centers click Exchange
In the left-hand menu click mail flow
At the top click connectors
Click + Add a connector
Choose Connection from Your organization's email server:
Choose Connection to Office 365
Click Next
In the Name box enter Campus Cafe
In the Description box enter a description such as "connection to Campus Cafe for email."
Under What do you want to do after connector is saved? Check Turn it on and check Retain internal Exchange email headers
Click Next
Select the radio button next to “By verifying that the IP address of the sending server matches on of these IP addresses that belong to your organization”
Enter 3.132.35.147
Click the + icon
Enter 3.18.151.171
Click Next
Click Create connector/Save, if you have already created a connector for Campus Cafe