Free Email Tester Online
Test any domain's email setup in seconds. See why your emails go to spam — and how to fix it.
Check MX records, SPF, DKIM, DMARC, and blacklists — all in one place.
Can you receive mail?
Who can send as you?
Is mail tampered?
Spam policy in place?
Are you blocked?
Why Your Emails Go to Spam
If your domain is missing SPF, DKIM, or DMARC, email providers like Gmail and Outlook will flag your messages as suspicious or outright spam. Here's what each check means:
Mail Exchange records tell the world where to deliver emails for your domain. Without valid MX records, you cannot receive any email at all. Each MX record has a priority — lower numbers are tried first.
SPF lists which servers can send email from your domain. Without it, anyone can spoof your domain name — and receiving servers will mark your mail as untrusted. Learn more →
DKIM digitally signs every email you send to prove it wasn't altered in transit. Like a wax seal on a letter — if it's broken, the message is compromised. Learn more →
DMARC ties SPF and DKIM together and tells receivers: "Here's what to do if my email fails these checks." Gmail and Yahoo now require DMARC for bulk senders. Learn more →
We check your mail server IPs against 5 major DNS blacklists: Spamhaus ZEN, SpamCop, Barracuda, SORBS, and PSBL. Being listed on even one can drop your inbox rate dramatically.
How It Works
- Enter your domain above (e.g., yourcompany.com)
- We query DNS records in real-time: MX, SPF, DKIM, DMARC
- We check blacklists based on your mail server IPs
- Get a score out of 100 with specific fixes listed
FAQ
Yes. No signup, no trial, no credit card. Unlimited domain checks.
We show exactly what's missing. Most fixes take 10 minutes in your DNS settings.
Yes. We check the DNS records that Gmail, Yahoo, Outlook, and all major providers use to filter spam.
No. We query DNS in real-time and don't log domain lookups. Your data stays private.