MTA-STS (SMTP MTA Strict Transport Security) ensures emails to your domain are only delivered over encrypted connections, preventing downgrade attacks.

BIMI (Brand Indicators for Message Identification) lets you display your brand logo next to emails in supported clients like Gmail, increasing trust and recognition.

Why is this a Pro feature?

Email monitoring includes advanced deliverability features and checks against numerous external services, providing enterprise-grade email infrastructure monitoring.

Email Monitor - Complete Email Deliverability Monitoring

What is Email Monitoring?

Email monitoring provides comprehensive deliverability checks including SPF, DKIM, DMARC, plus advanced features like MTA-STS and BIMI validation. It's designed for businesses that depend on email communication.

Technical Details

Beyond basic DNS checks, email monitoring validates MTA-STS policies for encrypted transport and BIMI records for brand logos in email clients. It provides a complete view of your email authentication setup.

Key Features

Everything you need for comprehensive monitoring

Full Authentication Stack

Complete SPF, DKIM, and DMARC validation in one monitor

Blacklist Monitoring

Check 50+ email blacklists for domain and IP reputation

MTA-STS Validation

Verify MTA-STS policies enforce encrypted email transport

BIMI Support

Check BIMI records for brand logo display in email clients

MX Record Health

Validate mail exchange records and server availability

Reputation Tracking

Monitor overall email sending reputation across providers

Use Cases

Real-world scenarios where this monitor shines

Marketing

Marketing Teams

Ensure marketing campaigns reach subscribers' inboxes, not spam folders.

Enterprise

Enterprise Communications

Maintain reliable email delivery for business-critical communications.

E-commerce

Guarantee transactional emails (orders, receipts) are delivered promptly.

Configuration

Available options to customize your monitor

Option	Type	Required	Default	Description
`domain`	`string`	Required	-	Domain name to monitor for email deliverability
`check_spf`	`boolean`	Optional	true	Validate SPF record configuration
`check_dkim`	`boolean`	Optional	true	Check DKIM records for specified selectors
`check_dmarc`	`boolean`	Optional	true	Validate DMARC policy and reporting
`check_mta_sts`	`boolean`	Optional	true	Verify MTA-STS policy for encrypted transport
`check_bimi`	`boolean`	Optional	true	Check BIMI record for brand logo

Best Practice

Enable all checks for comprehensive coverage. MTA-STS requires a valid certificate and policy file hosted on your domain.

Frequently Asked Questions

Common questions about this monitor type

Email monitor is an enhanced version of DNS monitoring with additional checks for MTA-STS and BIMI, plus more detailed deliverability analysis.

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