Mail‑Tester is a free web tool that lets you test the quality of your emails by analyzing their spam score. It helps identify issues that may prevent your messages from reaching inboxes.

🔍 Get a temporary email address to send your test message

📊 Receive a detailed report with a spam score (0–10)

⚡ Checks SPF, DKIM, DMARC, and DNS records for proper setup

🛡️ Detects blacklists and spam‑triggering content in your email

🖥️ Simple, web‑based interface – no installation required

🤝 Built by email software engineers, widely trusted by marketers and sysadmins

Perfect for: Marketers, developers, and sysadmins who want to ensure their emails avoid spam filters and reach recipients.