As email-based threats grow more sophisticated, enterprises must secure not only DMARC, SPF, and DKIM—but also the transport layer of outbound email. This is where MTA-STS (Mail Transfer Agent Strict Transport Security) and TLS-RPT (Transport Layer Security Reporting) come in.

If you’re evaluating DMARCReport and EasyDMARC as potential MTA-STS hosting providers, this expanded guide offers a deep, enterprise-level analysis unmatched by typical vendor comparisons.

We will examine:

  • MTA-STS hosting reliability
  • TLS-RPT visibility & data processing
  • Enterprise automation capabilities
  • DNS & certificate handling
  • Security architecture
  • Scalability & high availability
  • Pricing models
  • Integrations
  • Use cases by industry
  • Alternatives worth considering

This expanded edition is the most detailed side-by-side comparison available—designed for security engineers, SOC teams, email administrators, and decision-makers in highly regulated industries.

Why MTA-STS Security Matters for Enterprises in 2025

Email authentication has evolved quickly. While DMARC protects who is allowed to send on behalf of your domain, MTA-STS protects how that email is delivered.

Threats MTA-STS Mitigates

  • SMTP downgrade attacks
  • MITM attacks on SMTP
  • TLS stripping
  • Connections to malicious MX servers
  • Spoofed TLS certificates
  • Opportunistic TLS failures

Without MTA-STS, opportunistic TLS can leave gaps where attackers can intercept or modify mail in transit. This risk is unacceptable for:

  • Financial institutions
  • Healthcare organizations
  • Government agencies
  • Global enterprises
  • SaaS providers handling sensitive data

MTA-STS enforces strict, encrypted delivery every time, bringing SMTP closer to HTTPS-grade resilience.

DMARCReport vs EasyDMARC: Quick Summary for Executives

⭐ DMARCReport — Best for Enterprises

  • Hardened MTA-STS hosting
  • True high-availability global infrastructure
  • Scalable TLS-RPT data pipelines
  • Automated DNS + certificate lifecycle management
  • Deep integrations with SIEM & SOC workflows
  • Designed for high-volume, multi-domain organizations

⭐ EasyDMARC — Best for SMBs & Mid-Market

  • Simple setup
  • Lightweight MTA-STS hosting
  • Friendly dashboards
  • Broad DMARC-focused functionality
  • Good for teams without deep email security expertise

DMARCReport vs EasyDMARC: Feature-by-Feature Deep Dive

1. MTA-STS Hosting & Enforcement

DMARCReport: Hardened Enterprise Infrastructure

DMARCReport provides a fully managed MTA-STS hosting platform with:

  • Redundant, globally distributed policy hosting
  • Automated certificate checks
  • File integrity validation
  • Continuous HTTPS uptime monitoring
  • Fail-safe fallback servers
  • Policy version tracking

DMARCReport ensures your mta-sts.txt policy:

  • Is always hosted over valid HTTPS
  • Is never expired
  • Can never be tampered with
  • Remains globally reachable under heavy load

Ideal for: enterprises with strict SLA requirements.

EasyDMARC: Simplified MTA-STS Hosting

EasyDMARC provides basic policy hosting with:

  • Standard HTTPS hosting
  • Basic certificate checks
  • Notifications for policy issues

It is reliable for SMBs but lacks true multi-region redundancy, advanced certificate lifecycle automation, and failover logic.

Ideal for: small or mid-sized organizations needing straightforward MTA-STS enforcement.

2. TLS-RPT Aggregation & Analytics

DMARCReport: Enterprise-Grade TLS Reporting Pipeline

DMARCReport processes TLS-RPT data at enterprise scale, capable of handling:

  • Millions of daily TLS-RPT messages
  • Multi-domain visibility
  • Pattern detection across providers
  • Attack identification (downgrades, handshake failures, malformed TLS)
  • Forensic-grade incident logs
  • Real-time alerts for degraded TLS paths

DMARCReport’s analytics engine uses structured pipelines for:

  • SMTP connectivity failures
  • Cipher negotiation issues
  • TLS downgrade attempts
  • Invalid cert chains

This provides SOC teams actionable intelligence—not just raw logs.

EasyDMARC: Basic TLS Reporting

EasyDMARC offers clean dashboards and simple reporting visualization, but:

  • Not optimized for massive report volume
  • Limited granularity in TLS event classification
  • Does not offer multi-layer transport failure analysis
  • No forensic log pipelines

Great for small environments—insufficient for enterprise-scale observability.

3. DNS Automation & Certificate Lifecycle Management

DMARCReport

  • API-driven DNS automation
  • Automatic publishing of MTA-STS TXT records
  • Monitoring for DNS drift
  • Certificate validation, expiry warnings
  • Automatic renewal support for hosted certificates
  • Enforcement of policy version consistency

This eliminates the most common MTA-STS failure point: human error in DNS changes.

EasyDMARC

  • Provides setup instructions
  • Validates basic DNS states
  • Manually published DNS entries required
  • Limited automation

4. Security Architecture & Redundancy

DMARCReport

Designed with enterprise architecture patterns:

  • Global Anycast network
  • Multi-region failover
  • CDN-backed policy hosting
  • SOC-aligned logging controls
  • Role-based access, SSO/SAML
  • Encrypted data at rest & in transit
  • Immutable audit logs

EasyDMARC

  • Secure, stable infrastructure
  • Standard hosting architecture
  • Good for small environments
  • Lacks advanced multi-region redundancy

5. Ease of Use

DMARCReport

  • Built for security professionals
  • Clean dashboards
  • Highly detailed insights
  • Granular control

EasyDMARC

  • Beginner-friendly
  • Highly visual
  • Quick onboarding
  • Low learning curve

6. Scalability for Large Organizations

DMARCReport

Handles:

  • Thousands of domains
  • Billions of TLS-RPT messages per month
  • Multi-tenant org structures
  • Custom routing for SOC pipelines
  • API-first deployment at scale

EasyDMARC

  • Best for <50 domains
  • Not engineered for multi-tenant admin models
  • Limited API automation

Industry-Specific Use Cases

Finance

DMARCReport’s audit trails and strict policy enforcement make it ideal for banks, fintech platforms, and payment processors that require verifiable TLS integrity.

Healthcare

Organizations subject to HIPAA benefit from DMARCReport’s immutable logs, incident tracking, and high-security hosting.

Government

MTA-STS is increasingly recommended for .gov ecosystems. DMARCReport supports government-grade controls and multi-domain management.

SaaS / Tech

With high outbound email volume, TLS downgrade attempts become more likely—DMARCReport’s realtime alerts and TLS failure analytics are crucial.

Global Enterprises

Multi-region hosting and API automation help large organizations scale MTA-STS across business units.

Pricing Comparison

DMARCReport

Pricing is customized for:

  • Domain count
  • Reporting volume
  • Compliance needs
  • Multi-tenant admin
  • Advanced TLS insights
  • API automation
  • SLA and uptime guarantees

Best for enterprises needing predictable, audit-ready infrastructure.

EasyDMARC

Tiered packages:

  • Good value for SMBs
  • MTA-STS available in mid/upper tiers
  • Lower-cost entry

Not optimized for large-volume data ingestion.

Integration & API Ecosystem

DMARCReport

Integrates with:

  • Splunk
  • Microsoft Sentinel
  • Elastic
  • IBM QRadar
  • Custom SIEM pipelines
  • DNS providers
  • Email service providers
  • SAML/SSO systems

Has a robust API for automation, CI/CD workflows, and SOC ingestion.

EasyDMARC

Integrates with:

Great for simple deployments—not for enterprise automation.

Enterprise Alternatives to DMARCReport & EasyDMARC

1. DMARCReport (Best Overall for Enterprises)

Top choice for high-security MTA-STS, TLS-RPT forensics, and enterprise scalability.

2. Proofpoint

Full enterprise security suite; strong DMARC services but costly and overkill for some.

3. Valimail

DMARC-focused vendor with good managed services; less robust MTA-STS hosting depth.

4. Postmark

Great for developers; offers TLS insights but not complete MTA-STS enterprise coverage.

Final Verdict: Which MTA-STS Provider Should You Choose?

Choose DMARCReport if your organization requires:

  • Enterprise-grade MTA-STS hosting
  • Real-time TLS-RPT intelligence
  • Redundant global infrastructure
  • Audit-ready logs
  • Automation & API workflows
  • High-volume domain management
  • Compliance and reporting controls

DMARCReport is the clear market leader for enterprises.

Choose EasyDMARC if you need:

  • Simple onboarding
  • Lightweight MTA-STS hosting
  • SMB-friendly pricing
  • Basic TLS visibility
  • Beginner-friendly dashboards

Great for smaller organizations.

Bottom Line

For enterprises that need resilient, scalable, security-focused MTA-STS hosting with deep TLS analytics, DMARCReport delivers unmatched performance, automation, and security depth.

EasyDMARC is solid for SMBs—but lacks the scale, redundancy, and infrastructure necessary for regulated or high-volume enterprise environments.