How often should DNS records be checked?

Hourly checks are usually sufficient since DNS records rarely change. More frequent checks can detect unauthorized changes quickly.

What if I'm on an email blacklist?

WizStatus will alert you immediately. You'll need to investigate the cause (spam complaints, compromised server) and request delisting from the blacklist operator.

Why is this a Pro feature?

DNS monitoring requires querying multiple external services (DNS servers, blacklists) and provides advanced email deliverability insights that are critical for businesses.

DNS Monitor - SPF, DKIM, DMARC & Blacklist Monitoring

What is DNS Monitoring?

DNS monitoring validates your domain's email authentication records (SPF, DKIM, DMARC) and checks if your domain or IP is blacklisted. It helps ensure your emails reach recipients' inboxes instead of spam folders.

Technical Details

The monitor queries DNS servers for TXT records (SPF, DKIM, DMARC), MX records, and checks your domain against 50+ email blacklists. It validates record syntax and alerts on misconfigurations or blacklist appearances.

Key Features

Everything you need for comprehensive monitoring

SPF Validation

Verify SPF records are correctly configured to authorize your mail servers

DKIM Checking

Check DKIM records exist and are properly formatted for email signing

DMARC Monitoring

Validate DMARC policies are in place to protect against email spoofing

MX Record Checks

Verify mail exchange records point to valid mail servers

Blacklist Monitoring

Check your domain and IPs against 50+ email blacklists

MTA-STS Support

Validate MTA-STS policies for encrypted email transport

Use Cases

Real-world scenarios where this monitor shines

Marketing

Email Deliverability

Ensure emails reach inboxes by maintaining proper authentication records.

Security

Email Security

Protect your domain from spoofing and phishing with DMARC policies.

Compliance

Meet email authentication requirements for GDPR, HIPAA, and industry standards.

Configuration

Available options to customize your monitor

Option	Type	Required	Default	Description
`domain`	`string`	Required	-	Domain name to monitor (without https://)
`check_spf`	`boolean`	Optional	true	Validate SPF record exists and is correctly formatted
`check_dkim`	`boolean`	Optional	true	Check DKIM records for specified selectors
`check_dmarc`	`boolean`	Optional	true	Validate DMARC policy is configured
`check_blacklist`	`boolean`	Optional	true	Check domain and IPs against email blacklists
`dkim_selectors`	`string`	Optional	-	Comma-separated DKIM selectors to check (e.g., google,mail)

Best Practice

Configure DKIM selectors for your email providers. Common selectors: 'google' for Google Workspace, 's1,s2' for Mailchimp, 'selector1,selector2' for Microsoft 365.

Frequently Asked Questions

Common questions about this monitor type

They're email authentication protocols. SPF specifies which servers can send email for your domain. DKIM adds a digital signature. DMARC tells receivers what to do with failed authentication.

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