Mail Tester

Mail Tester

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Mail Tester provides a fast, technical check of an email message and its sending setup to help identify deliverability and spam-related issues. Send an email to the unique test address shown on the site and Mail Tester analyzes the message content, server configuration, DNS records and sending IP to produce a readable report with a spam score and diagnostic details.

Key capabilities:

  • Spam scoring and content analysis using established filters to highlight elements that increase spam risk.
  • Automated checks of authentication records (SPF, DKIM) and common DNS/mx configuration errors that affect delivery.
  • Sender/IP reputation and basic header inspection to show how receiving servers may evaluate the message.
  • Clear, itemized report that flags problems and shows which checks passed versus failed, making technical issues easier to prioritize.
  • Rapid, one-shot testing workflow that requires only sending a single message to the provided test address to receive results.

Benefits:

  • Helps diagnose why emails land in spam or are rejected by recipients’ servers by combining message and infrastructure checks.
  • Useful for developers, deliverability engineers, and marketers who need a quick verification of authentication and basic server setup.
  • Saves time compared with manual inspection of headers and DNS records by consolidating common deliverability tests into a single report.
  • Produces actionable findings suitable for troubleshooting or handing to an IT/admin to resolve configuration problems.

Relevant keywords incorporated naturally for search optimization: email deliverability test, spam score checker, SPF DKIM test, mail server diagnostics, sender reputation check, email header analysis.

The description focuses on factual capabilities and diagnostics rather than promotional claims; Mail Tester functions as a targeted technical tool for assessing message spam risk and mail server configuration.

This description was generated by AI (artificial intelligence). AI can make mistakes. Check important info.


Check your newsletter's spam score and quality. This tool's free, and pretty. mail-tester.com is a free online service that allows you to test your emails for Spam, Malformed Content and Mail Server Configuration problems.

Website: mail-tester.com

Disclaimer: WebCatalog is not affiliated, associated, authorized, endorsed by or in any way officially connected to Mail Tester. All product names, logos, and brands are property of their respective owners.

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