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1CRM vs Mail-Tester: 2026 Comparison

1CRM Mail-Tester
Overview An all-in-one CRM offering sales, marketing, and order management with self-hosted and cloud deployment options. Free email spam score checking tool that analyzes your emails for spam triggers and deliverability issues.
Pricing Subscription ($13-$35/user/month) Free (Free)
Key Features
  • Contact management
  • Order management
  • Project management
  • Service management
  • Marketing
  • Reporting
  • Invoicing
  • Inventory
  • Spam score testing
  • SPF check
  • DKIM check
  • DMARC check
  • Blacklist check
  • Content analysis
Pros
  • Affordable
  • Self-hosted option
  • All-in-one solution
  • Good for product businesses
  • Free to use
  • Simple interface
  • Quick results
  • Educational
Cons
  • Dated interface
  • Smaller community
  • Limited integrations
  • Documentation could improve
  • Limited tests per day
  • Basic analysis
  • No ongoing monitoring