Alternatives to SMTP Diag Tool for all platforms with any license




Web / Online

Other Platforms

  • Pingdom icon


    Pingdom web site monitoring and other infrastructure for you and instantly let you know when anything goes wrong. Measure uptime...

    Commercial Web / Cloud Android iPhone

  • MxToolBox icon


    All of your MX record, DNS, blacklist and SMTP diagnostics in one integrated tool. Input a domain name or IP Address or Host Name....

    Freemium Web / Cloud

  • Dnsstuff icon


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

    Freemium Web / Cloud

  • 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

  • icon

    IntoDNS checks the health and configuration and provides DNS report and mail servers report. And provides suggestions to fix and...

    Free Web / Cloud Self-Hosted

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