Who can send mail as my company?

Your domain should have a clear answer to that question. If it doesn’t, inboxes often guess — and strangers can try to send mail that looks like it came from you.

You don’t need to become an email engineer. You need to know where you stand, then take one next step.

Free. No signup. No provider walkthroughs. No jargon dump.

If senders aren’t locked down yet, you’ll get one clear action — not a homework list.