What this checker looks at
MX records (can you receive replies), your SPF record (which servers may send for you, and whether it stays under the 10-lookup limit), your DMARC policy, and DKIM signing keys on common selectors.
Free tool
Email deliverability checker
Test your domain’s SPF, DKIM, DMARC, and MX records in seconds — and get exact fixes so your emails reach the inbox.
How to read the score
90+ means your domain is ready for outreach. 70–89 means a few improvements, such as moving DMARC beyond monitoring. Below 70, fix the red items before sending campaigns.
Questions
Frequently asked questions
What does this deliverability checker test?
It looks up your domain’s MX records, SPF record, DMARC policy, and DKIM keys on common selectors, then explains each result and how to fix gaps.
Why do SPF, DKIM, and DMARC matter?
Gmail, Yahoo, and Outlook use them to confirm mail really comes from your domain. Bulk senders must have all three, and missing records are a common reason sales emails land in spam.
Why does DKIM show as missing when I set it up?
DKIM keys live under a selector name. This tool checks common selectors such as google, selector1, and selector2. If your provider uses a custom selector, your key may exist even though it is not found here.
Is this tool free?
Yes. It is free with no signup. Infiara customers also get continuous checks and a launch block when records fail, through Safety Guard.
