MX Record Configuration
Verifies mail exchange records exist, have correct priority settings, and point to responsive mail servers.
Email Authentication
Domain Email Health Check
Analyze your domain's email authentication setup. Check MX records, SPF, DKIM, and DMARC configuration to identify deliverability risks before they impact your campaigns.
Deep Analysis
What We Analyze
Every domain health check examines five critical areas of email authentication.
SPF Record Validation
Checks that your SPF record exists, is syntactically correct, and properly authorizes your sending servers.
DKIM Signing Status
Validates that DKIM signing is configured for your domain, ensuring messages are cryptographically authenticated.
DMARC Policy Assessment
Evaluates your DMARC policy enforcement level and reporting configuration to protect against domain spoofing.
Domain Reputation Indicators
Assesses overall domain reputation signals and provides actionable recommendations to improve email deliverability across all major mailbox providers.
Why Domain Authentication Matters
Proper email authentication directly impacts whether your messages reach the inbox or land in spam.
Inbox Placement
Domains with properly configured SPF, DKIM, and DMARC records see significantly higher inbox placement rates across Gmail, Outlook, and Yahoo.
Spoofing Protection
Email authentication prevents bad actors from sending fraudulent messages using your domain, protecting your brand and your recipients.
ESP Compliance
Major email service providers increasingly require domain authentication. Google and Yahoo require SPF, DKIM, and DMARC for bulk senders.
256-bit SSL Encrypted
No Emails Sent During Verification
No Data Reselling — Ever
98.4% Accuracy Rate
Frequently Asked Questions
What is a domain health score?
A domain health score is a composite rating that evaluates your domain's email authentication configuration — including MX records, SPF, DKIM, and DMARC policies — to predict how mailbox providers will treat messages from your domain.
How often should I check my domain health?
We recommend checking domain health monthly, or immediately after making DNS changes, switching ESPs, or experiencing deliverability issues.
What is SPF and why does it matter?
SPF (Sender Policy Framework) is a DNS record that specifies which mail servers are authorized to send email on behalf of your domain. Without a valid SPF record, receiving servers may reject or flag your emails as spam.
What is DMARC and how do I set it up?
DMARC (Domain-based Message Authentication, Reporting, and Conformance) is a policy that tells receiving servers how to handle emails that fail SPF or DKIM checks. Set it up by adding a DMARC DNS TXT record with your desired policy (none, quarantine, or reject). Learn more in our DNS email validation guide.
Can I monitor domain health over time?
Yes. Run regular domain health checks through Mailthentic to track changes in your email authentication configuration and catch misconfigurations before they impact deliverability.
Check Your Domain Health Now
Identify authentication gaps and protect your email deliverability in minutes.