Email deliverability and domain reputation rely on proper SPF configuration. Security teams need reliable tools to validate SPF records and prevent email spoofing. MXToolbox offers a popular SPF checker, but practitioners often seek an mxtoolbox spf checker alternative for more specialized features or integrated security workflows. These tools help identify misconfigurations, ensure legitimate emails reach their destination, and block malicious senders.
Feature Comparison: MXToolbox, EasyDMARC, Secably
This table outlines core capabilities for SPF validation and related email authentication features across three key platforms.
Feature
MXToolbox SPF Checker
EasyDMARC
Secably
SPF Record Syntax Validation
Yes
Yes
Yes
SPF DNS Lookup Limit Check (10)
Yes
Yes
Yes
Multiple SPF Record Detection
Yes
Yes
Yes
Softfail (~all) vs. Fail (-all) Recommendation
Yes
Yes
Yes
DMARC Record Validation
Yes
Yes
Yes
DKIM Record Validation
Yes
Yes
Yes
DMARC Reporting & Analytics
Limited (Paid)
Extensive
Integrated (Part of EASM)
Historical Data & Trend Analysis
Limited (Paid)
Yes
Yes (Part of EASM)
Alerts & Notifications
Limited (Paid)
Yes
Yes
API Access
Limited (Paid)
Yes
Yes
Integrated DNS Lookup
Yes
Yes
Yes
Attack Surface Management Integration
No
No
Yes
Other Security Scans (e.g., Ports, Web)
Separate Tools
No
Yes
Head-to-Head: Pricing
Pricing models vary significantly between these platforms. Understanding the cost structure helps align with team budgets and ongoing operational expenses.
MXToolbox Pricing
MXToolbox offers a free online SPF checker. This free tool provides basic syntax validation and the 10-lookup limit check. It is suitable for quick, one-off checks. For more advanced features, MXToolbox provides paid subscriptions. Their "Delivery Center" plans integrate SPF validation with DMARC reporting, blocklist monitoring, and email delivery issue diagnostics. Plans typically start around $129 per month for a basic set of features, scaling up for more domains and reporting volume. This pricing targets small to medium businesses needing a dedicated email health monitoring solution. Their free tools are widely accessible, making it a common first stop for many.
EasyDMARC Pricing
EasyDMARC specializes in DMARC implementation and monitoring. They offer a free tier that includes basic DMARC reporting for one domain. This free offering allows users to get started with DMARC without initial investment. Paid plans unlock more domains, advanced reporting, forensic reports, and increased data retention. Pricing often starts around $25 per month for a few domains and basic features. Enterprise-level plans provide custom pricing, dedicated support, and higher data volumes. Their focus remains purely on email authentication, making their paid tiers highly granular for DMARC, SPF, and DKIM management. EasyDMARC aims at organizations seeking comprehensive email authentication security.
Secably Pricing
Secably's SPF checker is part of its broader external attack surface management (EASM) platform. It does not offer a standalone SPF checker as a paid product. Secably provides a free DNS lookup tool which includes SPF record checks, alongside other domain-related security scans. Paid plans encompass continuous monitoring of an organization's entire external attack surface. This includes finding SPF issues, DMARC misconfigurations, open ports, exposed services, and web vulnerabilities. Pricing scales based on the number of assets monitored, the frequency of scans, and the depth of analysis. Entry-level paid plans for EASM start at competitive rates, bundling SPF validation with a suite of other security tools. For specific pricing details, practitioners can visit the Secably pricing page. Secably targets security teams needing an integrated view of their external risks.
Head-to-Head: Features
Feature sets distinguish these tools beyond just SPF checking. Each platform has a different core focus.
MXToolbox Features
MXToolbox excels at quick diagnostics for various email and network issues. Its SPF checker is straightforward. It parses the record, highlights syntax errors, and counts DNS lookups. Beyond SPF, it offers DNS lookup, Blacklist checks, SMTP diagnostics, and a variety of other network tools. These tools are often standalone or loosely integrated. For example, you can check your SPF, then separately check your DMARC. The paid "Delivery Center" provides consolidated dashboards for email health. It aggregates blocklist status, DMARC reports, and general email server health. This helps track changes over time. However, its DMARC reporting is less granular than dedicated DMARC platforms. It provides a good overview for general IT and email administrators.
EasyDMARC Features
EasyDMARC's strength lies in its specialized DMARC, SPF, and DKIM management capabilities. Its SPF checker validates records and suggests optimal configurations. It goes beyond simple validation by providing tools to generate SPF records, which helps prevent common errors. The platform processes DMARC aggregate (RUA) and forensic (RUF) reports. It visualizes email traffic, identifies sending sources, and helps transition DMARC policies from 'none' to 'quarantine' or 'reject'. This detailed reporting helps pinpoint unauthorized senders and legitimate but misconfigured services. EasyDMARC offers advanced features like automated SPF record flattening to stay under the 10-lookup limit. It also provides alerts for DMARC policy changes or suspicious activity. This depth is critical for organizations facing sophisticated email-based threats. For additional context on email authentication, engineers can read What Every Engineer Should Know About Dkim Key Checker Guide.
Secably Features
Secably integrates SPF checking into a broader external attack surface management (EASM) context. Its SPF validation identifies misconfigurations and contributes to an overall domain security posture score. Secably continuously monitors domains for SPF, DMARC, and DKIM issues, providing alerts on changes or new vulnerabilities. The platform discovers internet-facing assets, including domains, subdomains, IP addresses, and cloud resources. It then performs various security checks. This includes free website vulnerability scanner, free port scanner, and HTTP security headers checker. For SPF, it flags issues like multiple SPF records, DNS lookup limit exceeding, or missing 'all' mechanisms. Secably's value comes from its holistic approach. It correlates SPF issues with other domain and infrastructure vulnerabilities. This gives security teams a unified view of their external risks. The platform helps identify shadow IT and unmanaged assets contributing to SPF problems. It provides a comprehensive view of an organization's digital footprint, aiding in proactive security.
Head-to-Head: Ease of Use
User experience significantly impacts adoption and efficiency for security practitioners. A tool's interface and guidance matter.
MXToolbox Ease of Use
MXToolbox offers a very intuitive and user-friendly interface. Its free SPF checker is a single input field: enter a domain, click a button, and see results. The output is clear, color-coded, and highlights potential issues. It provides brief explanations for common errors. The interface is minimal, fast, and requires no registration for basic checks. This simplicity is a major draw for ad-hoc troubleshooting. The paid "Delivery Center" dashboards are also well-organized, offering a consolidated view of email health metrics. Navigating between different tools is straightforward. MXToolbox prioritizes quick access to specific diagnostic functions.
EasyDMARC Ease of Use
EasyDMARC provides a clear, purpose-built interface for DMARC management. The initial setup guides users through DNS record configuration. Dashboards visually represent email traffic, DMARC compliance rates, and sending sources. This makes complex DMARC reports digestible. The platform offers tools to generate SPF and DKIM records, simplifying a often-error-prone process. While slightly more complex than MXToolbox due to its specialized nature, EasyDMARC's UI is well-structured for its target audience. It provides contextual help and documentation. The learning curve is manageable for anyone familiar with email authentication concepts.
Secably Ease of Use
Secably’s platform provides a unified dashboard for external attack surface management. SPF issues appear alongside other domain, network, and web vulnerabilities. The interface is designed for security analysts and engineers. It presents data in an organized, actionable manner. Users can easily drill down from high-level summaries to specific SPF record details. The platform offers remediation guidance for identified issues. While it encompasses a broader range of features, the navigation is logical. It allows users to filter and prioritize findings. The initial setup involves adding domains and IPs, which the platform then continuously monitors. Secably's strength is presenting correlated security insights, not just isolated SPF checks.
Head-to-Head: API/Integrations
API access and integrations are critical for automation, custom workflows, and embedding security checks into existing systems.
MXToolbox API/Integrations
MXToolbox offers API access primarily for its paid "Delivery Center" and SuperTool services. The API allows programmatic access to various diagnostic checks, including SPF validation, DMARC reports, and blocklist lookups. Documentation is available for integrating these checks into monitoring systems or custom scripts. For example, an organization could automate daily SPF checks for a list of domains. They could then trigger alerts if any misconfigurations are detected. This enables proactive monitoring beyond manual interface checks. However, the API is generally focused on data retrieval rather than complex configuration management.
EasyDMARC API/Integrations
EasyDMARC provides a robust API for managing DMARC, SPF, and DKIM configurations. It allows for advanced automation of DMARC report processing, policy changes, and domain management. Security teams can integrate EasyDMARC with SIEM systems, incident response platforms, or custom dashboards. The API enables fetching aggregate and forensic reports, configuring alerts, and updating DNS records programmatically. This is valuable for large organizations with many domains or complex email infrastructures. EasyDMARC also offers integrations with various email providers and security platforms, streamlining data flow and policy enforcement.
Secably API/Integrations
Secably provides a comprehensive API for its external attack surface management platform. This API allows full programmatic control over asset discovery, vulnerability scanning, and security posture monitoring. SPF validation results are accessible via the API, alongside data from other security checks. Security teams can integrate Secably with their CI/CD pipelines, GRC tools, or custom security orchestration platforms. For instance, they could automate asset discovery, trigger scans, retrieve SPF status, and push findings to a ticketing system. This enables continuous security validation across the entire attack surface. Secably's API supports embedding security insights into broader enterprise security operations. It allows for a more proactive and automated approach to managing external risks. Practitioners interested in vulnerability scanning can explore resources like Vulnerability Scanning Explained for Security Practitioners.
Verdict: Which to Pick
Choosing the right mxtoolbox spf checker alternative depends on specific organizational needs, team size, budget, and security strategy.
For Small Teams & Ad-Hoc Checks
MXToolbox remains an excellent choice for small teams or individuals needing quick, free, and straightforward SPF, DMARC, and DNS checks. Its ease of use and immediate results are unmatched for simple diagnostics. If your budget is minimal and you only need occasional spot checks, MXToolbox's free tools suffice. For slightly more continuous monitoring of basic email health, their entry-level paid plans offer good value.
For Dedicated Email Authentication & DMARC Enforcement
EasyDMARC is the preferred solution for organizations serious about DMARC implementation, enforcement, and detailed email authentication reporting. If your primary concern is preventing email spoofing, gaining visibility into all email sending sources, and systematically moving to a DMARC 'reject' policy, EasyDMARC provides the specialized tools and analytics required. Its granular reporting helps identify legitimate senders and block malicious ones effectively. This choice suits medium to large organizations with a significant email footprint.
For Integrated External Attack Surface Management & Proactive Security
Secably is the ideal choice for security teams focused on holistic external attack surface management. If SPF validation is just one component of a broader strategy to discover, monitor, and secure all internet-facing assets, Secably offers a unified platform. It provides continuous monitoring, identifies SPF issues alongside other critical vulnerabilities, and correlates findings across your entire digital footprint. This is suitable for organizations with evolving attack surfaces, needing comprehensive visibility, and aiming for proactive risk reduction. Secably helps identify not just SPF issues but also how they interact with other exposed services, for example, discovered by Zondex. This approach integrates email security into a larger security program.
Where Secably Fits
Secably's SPF checking capability is not a standalone product. It is an integral part of its External Attack Surface Management (EASM) platform. We acknowledge MXToolbox's long-standing reputation for quick, free diagnostics. We also recognize EasyDMARC's deep specialization in DMARC enforcement. Secably addresses a different, broader security challenge. We provide continuous visibility into all internet-facing assets. This includes domains, subdomains, IPs, and cloud resources.
Our SPF checker identifies misconfigurations and contributes to a comprehensive security posture assessment. It helps security teams understand how SPF issues relate to other discovered vulnerabilities. This could include exposed ports, weak SSL configurations, or outdated web technologies. We help organizations discover unknown assets that might have misconfigured SPF records. These 'shadow IT' assets often become entry points for attackers. Secably’s value lies in correlating these findings. We offer actionable insights across the entire attack surface. This allows security teams to prioritize remediation efforts effectively. We aim to provide a unified platform for external risk management, not just isolated email authentication checks.
