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Is Your Domain Landing in Spam?

Check your email authentication in 10 seconds. We'll verify SPF, DKIM, DMARC, and MX records — the four things mail servers check before delivering your email.

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How Email Authentication Works

1

You Send an Email

Your email server sends the message. It includes your domain name in the "From" address.

2

Receiver Checks DNS

The recipient's mail server looks up your domain's SPF, DKIM, and DMARC records to verify you're legit.

3

Pass = Inbox, Fail = Spam

If all checks pass, your email goes to the inbox. If any fail, it gets flagged as suspicious — usually spam.

4

Fix It in Minutes

Adding missing records takes 2 minutes in your DNS panel. The results below tell you exactly what to add.

Frequently Asked Questions

What is SPF and why does my domain need it?
SPF (Sender Policy Framework) is a DNS record that tells email servers which IP addresses are authorized to send email from your domain. Without SPF, anyone can fake emails from your domain, so mail servers treat your legitimate emails as suspicious — often sending them to spam. Adding an SPF record takes 2 minutes in your DNS settings.
What is DMARC and how does it affect email deliverability?
DMARC tells receiving mail servers what to do when an email fails SPF or DKIM checks. Without DMARC, servers make their own judgment — usually sending to spam. With DMARC, you control the policy. Even a basic "monitor" policy (p=none) improves deliverability because it proves you care about email authentication.
What is DKIM and how do I set it up?
DKIM (DomainKeys Identified Mail) adds a cryptographic signature to your emails that proves they haven't been tampered with. Most email providers (Google Workspace, Microsoft 365) set up DKIM automatically. Check your provider's help docs if it's missing — it's usually a DNS record you add once.
Why are my cold emails going to spam?
The #1 reason is missing email authentication records (SPF, DKIM, DMARC). Enterprise mail servers check all three. If even one fails, your email is flagged. Other factors: sending too many emails too fast, spammy subject lines, too many links, and being on email blacklists. Fix authentication first — it's the foundation.
How long does it take for DNS changes to propagate?
DNS changes typically propagate within 5-60 minutes, though it can take up to 48 hours in rare cases. Most modern DNS providers propagate within 15 minutes. After adding records, wait 15 minutes and re-run this check to verify they're live.