I am assuming that if you made it this far then you will already know a little bit around the importance of SPF, DKIM and DMARC. If not, then definitely go and read my other post that talks about these three. It also has a video on how to set them up in your Microsoft 365 tenant too. Here is the link.
Once you have things in place, or if you just want to check if all the settings you have in place are correct then use the tool here to confirm.
The tutorial video to getting the SPF DKIM & DMARC in place on Microsoft 365 is here.
While you are here, feel free to check out the Microsoft 365 Discovery Tool. It provides a solid overview of all the accounts and usage in your tenant. For Exchange Online, Sharepoint, Teams and OneDrive.
Thanks for reading, check out the YouTube channel as well.
Mark – The Cloud Geezer