Email Server Test
Grade your email server.
Fix what's broken.
Enter any domain. We check SPF, DKIM, DMARC, MX records, reverse DNS, TLS, BIMI, and blacklist status. You get a letter grade and a clear list of what to fix.
Free · No signup · Results in 30 seconds
Sample results
8 checks. Every domain.
acme.com — Server Configuration Report
SPF Record
v=spf1 include:_spf.google.com ~all
DKIM Signature
Valid 2048-bit RSA key, selector: google
DMARC Policy
No DMARC record found — domain is unprotected
MX Records
5 MX records found, priority 1-10
Reverse DNS (PTR)
PTR record matches sending hostname
TLS Encryption
TLS 1.3 supported, valid certificate
BIMI Record
No BIMI record — brand logo will not show in inboxes
Blacklist Status
Not listed on any of 200+ monitored blacklists
Where you passed. Where you did not.
Four categories. Each graded separately
so you know exactly what to fix first.
Authentication
Missing DMARC
Infrastructure
No issues
Reputation
No issues
Compliance
Missing BIMI
Checks all major protocols · Actionable fix instructions · Exportable reports
Before your content even matters
Gmail checks your server before it reads
your subject line. Fail here, land in spam.
ISPs check your server first
Before your email content is even read, Gmail and Outlook check your server configuration. Failures here mean instant spam folder.
Authentication prevents spoofing
Without SPF, DKIM, and DMARC, anyone can send email pretending to be your domain. Phishing attacks erode trust in your brand.
Compliance is mandatory
Google and Yahoo require bulk senders to have proper authentication. Non-compliant domains get throttled or blocked entirely.
A misconfigured server kills deliverability.
Test your domain right now. Free, instant results.
See exactly what needs fixing.
Free unlimited tests · No signup · Shareable reports