Alternatives to SMTP Diag Tool for all platforms with any license

Platforms

Desktop

Mobile

Web / Online

  • Pingdom icon

    Pingdom

    Pingdom is a service for testing performance of website. Enter a URL to test the load time of that page, analyze it and find bottlenecks.

    Commercial Web / Cloud Android iPhone

  • MxToolBox icon

    MxToolBox

    All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool. Input a domain name or IP Address or Host Name. Links in the results will guide you to other relevant tools and information. .

    Freemium Web / Cloud

  • Dnsstuff icon

    Dnsstuff

    DNSstuff offers DNS tools, Network tools, Email tools, DNS reporting and IP information gathering. Explore monitoring products and free DNS tools at DNSstuff.

    Freemium Web / Cloud

  • intoDNS.in icon

    intoDNS.in

    IntoDNS checks the health and configuration and provides DNS report and mail servers report. And provides suggestions to fix and improve them, with references to protocols’ official documentation.

    Free Web / Cloud Self-Hosted

  • Private-API

    Minimalistic external website monitoring solution, still in alpha but is going to be released with all monitoring features soon.

    Free Mac Windows Linux Web / Cloud Android

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