Free Tool
Free Email Deliverability Checker
Is your website's contact form actually reaching your inbox? Check SPF, DKIM, DMARC, and MX records in plain language — the exact class of check that found why our own contact form was silently failing.
— domains checked so far
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Checked
What this tool checks
MX records
Confirms your domain can actually receive email at all, and where it's routed.
SPF record
Whether your domain authorizes which servers can send mail as you — and flags duplicate records, a common misconfiguration.
DKIM record
Checks common selector names for a DKIM signing key, used to cryptographically verify your mail wasn't altered in transit.
DMARC record & policy
What happens to mail that fails authentication — monitored, quarantined, or rejected outright.
Enforcement risk
Whether a strict DMARC policy combined with missing SPF/DKIM is actively causing mail to be dropped right now.
Plain-language explanations
No raw DNS jargon dumped on you — every result explains what it actually means for your inbox.
We built this after finding — on our own domain — that a strict DMARC policy combined with a missing SPF record was silently sending our own contact form submissions to nowhere. The website reported success. The email never arrived. If your form has ever felt too quiet, this is worth two minutes to check.
How to use the Email Deliverability Checker
- Enter your domain name, for example yourbusiness.com, without https:// or www.
- Click "Check My Domain". The tool looks up your MX, SPF, DKIM and DMARC records live.
- Read each result, which explains in plain language whether the record is set up correctly and what to fix if it isn't.
- Share the results with whoever manages your domain or email, since the fixes are made in your DNS settings.
What to do with your results
The most urgent problem is a strict DMARC policy (quarantine or reject) combined with a missing or broken SPF or DKIM record, because it can send your own email, including contact form notifications, to spam or nowhere at all. After fixing your DNS records, give the changes time to spread, then run the check again.
Frequently asked questions
What is SPF and why does it matter?
SPF lists which servers are allowed to send email as your domain. Without it, receiving servers can't verify your mail is legitimate — a common cause of silent delivery failures.
What is DMARC and why does it matter?
DMARC tells receiving servers what to do when SPF or DKIM checks fail — monitor, quarantine, or reject. Without it, there's no consistent policy or reporting.
My contact form emails aren't arriving. Could this be why?
Very likely, yes — this is one of the most common causes, and it's exactly what this tool is built to catch.
Why are my contact form emails not arriving?
A common cause is missing or incorrect SPF, DKIM or DMARC records for the domain sending the email. Receiving servers then treat the message as suspicious and send it to spam or reject it.
How long do DNS changes take to work?
Often a few minutes to a few hours, but DNS changes can take up to 48 hours to spread everywhere, so check again after a day if the results haven't changed.
Let's build something
Found a problem? We can fix it today.
Setting up SPF, DKIM, and DMARC correctly is a same-day fix, not a redesign. Message us directly and we'll walk you through it.
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