Free tool
Email Deliverability Checker
Is your domain set up so business email actually reaches the inbox? Enter it below for an instant, plain-English check of your SPF, DKIM and DMARC — the three records that decide whether Gmail and Outlook trust your mail.
The three records that decide if your mail is trusted
- SPF — a DNS record listing which mail servers are allowed to send as your domain. Missing it, and anyone can spoof you.
- DKIM — a cryptographic signature on every message proving it wasn't tampered with in transit.
- DMARC — tells receivers what to do with mail that fails SPF/DKIM, and emails you reports of forgery attempts.
Get all three right and Gmail, Outlook and Yahoo trust your mail. Miss one and a slice of your invoices, quotes and replies quietly go to spam — and you never find out why. Read the full guide: SPF, DKIM, DMARC explained.
Common questions
Why is my business email going to spam?
Almost always because your domain is missing one of the three email-authentication records — SPF, DKIM or DMARC. Gmail, Outlook and Yahoo use these to decide whether to trust your mail. If they're missing or misconfigured, your invoices and replies quietly land in spam. This tool checks all three.
What are SPF, DKIM and DMARC?
SPF lists which servers are allowed to send mail for your domain. DKIM adds a cryptographic signature proving the message wasn't altered. DMARC tells receivers what to do when a message fails those checks, and sends you reports of forgery attempts. You need all three for reliable delivery.
My DKIM shows as "not detected" — is it really missing?
Maybe not. DKIM is published under a "selector" name that varies by provider, and we can only test the common ones. If you use an unusual setup, your DKIM might exist under a selector we didn't check. The SPF and DMARC results are definitive; DKIM is best-effort.
Can you fix my email deliverability for me?
Yes — that's exactly what we do. When you set up email with us, we configure SPF, DKIM and DMARC correctly before you send a single message, and verify it works. No DNS records to paste, no guessing.