Email DNS Checker

Check the DNS records that decide whether mail from a domain lands in the inbox: MX, SPF and DMARC.

FAQ

Why does my mail go to spam?
Missing or weak SPF and DMARC records are common causes: receivers can't confirm the mail really comes from your domain.
What DMARC policy should I use?
Start with p=none and a rua report address to see who sends as you, then move to quarantine and finally reject.