Setting the SPF Record for Microsoft 365 in the Domain Center
Please use the “Print” function at the bottom of the page to create a PDF.
An SPF record lets you prevent spam emails from being sent from your email addresses. This additional record in the DNS settings defines which mail servers are authorized to send emails using your domain.
The TXT value that you need to create the SPF record can be found in the Microsoft 365 Admin Center on the Update DNS Settings page under TXT Records.
Please Note:
You can only set one SPF record for a domain. If you set multiple SPF records, it may cause problems with transmitting emails and properly classifying spam.