What does Who can send mean?

On SpoofCoach, Who can send is the first row on At a glance. It’s whether your domain has a clear list of who may send mail that looks like it came from your company.

Checks out on this row means that list looks present and readable. Needs a look means it isn’t clear yet — so strangers may still be able to try until you take the one next step on screen.

Who can send is not a promise that nobody will ever pretend to be you. It’s whether that first piece of setup is in place so you know who is allowed to send as you.