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Best MXToolbox Alternatives in 2025: Find Your Perfect Email Testing Tool
June 5, 2025
MXToolbox has been a popular choice for DNS diagnostics and email delivery testing, but it's not the only option available. If you're looking for alternatives that offer better features, more affordable pricing, or a different approach, we've got you covered. Here's our honest comparison of the top MXToolbox alternatives.
What is MXToolbox?
MXToolbox is a comprehensive DNS and email delivery diagnostic tool that provides MX record lookups, blacklist checking, SMTP testing, and various network diagnostics. It offers both free tools and paid services for email delivery monitoring and management.
However, MXToolbox has some limitations that might make you look elsewhere:
- Limited free features (only one free monitor, top 30 blacklists)
- No AI-powered analysis or content recommendations
- No accessibility testing features
- Requires paid plans for advanced features
- No personal email agent functionality
- Focuses primarily on technical diagnostics rather than marketing insights
- No comprehensive email content testing
- Limited to DNS and deliverability diagnostics
Top MXToolbox Alternatives
MailMoxie - Our Top Pick
RecommendedMailMoxie revolutionizes email testing with AI-powered analysis that actually understands email marketing. Instead of just providing technical diagnostics, MailMoxie provides actionable recommendations to improve your emails and boost performance.
Key Features:
- AI-Powered Analysis: Your personal email expert that understands marketing and transactional emails
- Unlimited Email Tests: No monthly limits on testing your campaigns
- 50+ Spam Trigger Testing: Comprehensive analysis of spam triggers and deliverability issues
- Advanced Accessibility Testing: WCAG 2.1 AA compliance testing for inclusive email marketing
- Subject Line Optimization: AI-powered suggestions to improve open rates
- Instant Results: Get detailed reports in seconds, not minutes
- Personal Agent Email: Send emails to your own MailMoxie agent address
- Comprehensive Testing: Beyond just technical diagnostics - content, accessibility, and optimization
Pricing:
Freeforever
Unlimited email tests, no credit card required
MXToolbox
MXToolbox provides comprehensive DNS diagnostics, email delivery testing, and network monitoring tools with both free and paid service options.
Key Features:
- MX record lookups and DNS diagnostics
- Blacklist checking and monitoring
- SMTP testing and email delivery diagnostics
- Network connectivity testing (ping, trace, TCP)
- SPF, DKIM, and DMARC record checking
- Inbox placement testing
- Recipient complaints monitoring
- Email delivery configuration management
- Adaptive blacklist monitoring
- Outbound and inbound mailflow monitoring
Pricing:
Free Plan:$0/month
Paid Plans:Contact for pricing
Limited free features • One free monitor • Top 30 blacklists only
Other Alternatives
DNS Checker
Free DNS lookup and diagnostic tool
Free (limited features)
WhatIsMyIPAddress
IP lookup and blacklist checking tools
Free (basic features)
IntoDNS
DNS health checking and diagnostics
Free (limited reports)
Why Choose MailMoxie Over MXToolbox?
AI-Powered Insights
While MXToolbox provides technical diagnostics, MailMoxie offers AI-powered recommendations that actually help you improve your emails and boost deliverability.
Comprehensive Email Testing
MailMoxie provides comprehensive email testing including content analysis and accessibility, while MXToolbox focuses primarily on technical DNS and deliverability diagnostics.
Marketing-Focused Approach
MailMoxie understands email marketing and provides actionable insights, while MXToolbox is more focused on technical infrastructure and diagnostics.
Unlimited Testing
MailMoxie offers unlimited email tests completely free, while MXToolbox's free plan is very limited and paid plans require contacting sales.
Final Verdict
While MXToolbox offers solid DNS and email delivery diagnostics, MailMoxie provides a more comprehensive, AI-powered solution that's focused on helping you improve your email marketing performance.
If you're looking for actionable insights to improve your email performance rather than just technical diagnostics, MailMoxie is the clear winner. Plus, with a 7-day free trial and no credit card required, there's no risk in trying it out.
Disclosure: This comparison is based on publicly available information and our own testing. Pricing and features may change. We recommend trying multiple tools to find the best fit for your specific needs.
MailMoxie
Professional email deliverability, accessibility, spam score testing, and consulting services. Make sure your emails reach the inbox, not the spam folder.
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