10/23/2026
Anyone can send an email that says it's from your company.
Three email settings are how the receiving side checks. Set up and enforced, they help stop people impersonating your company and help your real mail reach inboxes.
They don't stop every phishing message. They do close a door that's open by default.
If nobody can say whether yours are set up, that's the first thing to find out. Our complimentary email domain scan checks them.
Link in the first comment.