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    © 2026 builtbyindies, Inc.

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    SendBridge Mail Tester

    Unlimited free email spam & deliverability testing

    SendBridge Mail Tester
    #1 Product of the Week

    SendBridge Mail Tester

    Unlimited free email spam & deliverability testing

    D
    Dave Rave

    Screenshots

    Screenshot 1
    Free
    Email
    Email Marketing
    Mail Server
    Built with
    LinuxLinux
    PhpPhp

    SendBridge Mail Tester is a free, unlimited email deliverability and spam score checker. Send a test email to a unique auto-generated address and get a detailed 0–100 score in seconds - no signup required.

    What we check (12 areas):

    • SPF, DKIM, and DMARC authentication
    • Rspamd spam scoring engine
    • 23+ RBL blacklist lookups (including Spamhaus)
    • Reverse DNS (PTR) and DNS (A/MX) configuration
    • TLS encryption and HELO/EHLO match
    • Content quality, link validation, and technical headers (List-Unsubscribe, Message-ID, Return-Path)

    How it works: (1) We generate a unique test inbox, (2) you send an email from your real sending setup (SMTP, Mailchimp, SendGrid, SES, Gmail, etc.), (3) you get a shareable report with actionable fixes.

    Built for email marketers validating campaigns, developers debugging transactional email, and agencies/consultants producing shareable audit reports with embeddable score badges.

    A modern free alternative to mail-tester.com - with unlimited tests, Rspamd analysis, and a mobile-friendly UI.

    Award
    AVD
    Alexander B & 8 others upvoted
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