SMTP Diag Tool Alternatives

SMTP Diag Tool is described as 'Is used to identify and troubleshoot SMTP server problems by trying to send a message to an SMTP server while displaying all diagnostic information in realtime in a log window' and is an app in the network & admin category. There are more than 10 alternatives to SMTP Diag Tool for a variety of platforms, including Web-based, SaaS, Mac, Windows and Linux apps. The best SMTP Diag Tool alternative is Pingdom. It's not free, so if you're looking for a free alternative, you could try MxToolBox or Upzilla. Other great apps like SMTP Diag Tool are Website Monitoring by Uptime.com, intoDNS, Pingbreak and Dnsstuff.

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SMTP Diag Tool alternatives page was last updated

Alternatives list

  1. Pingdom icon
     63 likes

    Pingdom web site monitoring and other infrastructure for you and instantly let you know when anything goes wrong. Measure uptime, downtime, and the performance of your website as experienced by visitors.

    257 Pingdom alternatives

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Online
     
  2. MxToolBox icon
     14 likes

    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.

    38 MxToolBox alternatives

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
     
  3. Uptime.com: Real-time availability monitoring & response for preventing website downtime. Your complete website monitoring solution.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Mac
    • Windows
    • Linux
    • Online
    • Android
    • iPhone
    • Chrome OS
    • Android Tablet
    • iPad
    • Zapier
    • Google Chrome
    • Software as a Service (SaaS)
    • Terraform
    • GitHub
    • Firefox
     
  4. Upzilla icon
     5 likes

    Monitor your website, server, API, application, service and get notified if your resources have some problems with availability. Upzilla notifies you in Slack, Telegram, Messenger, or by email. Works also as a public status page with subscriptions.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Software as a Service (SaaS)
     
  5. intoDNS icon
     13 likes

    intoDNS checks the health and configuration of DNS and mail servers.

    Cost / License

    • Free
    • Proprietary

    Platforms

    • Online
     
  6. Pingbreak icon
     3 likes

    Pingbreak is an original and free monitoring service. Get notified through Twitter if your website is down. Pingbreak checks all of your websites each minute and alert you instantly by Direct Message (DM)

    Cost / License

    • Free
    • Proprietary

    Application type

    Platforms

    • Online
    • Discord
    • Mattermost
    • Slack
    • Twitter
     
  7. Dnsstuff icon
     4 likes

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

    Cost / License

    • Freemium
    • Proprietary

    Platforms

    • Online
     
  8. Netthrob icon
     1 like

    Netthrob runs automated verification checks on your website every three minutes from five different geographies and immediately informs you through Phone, SMS & Email when your site goes down.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Online
    • Self-Hosted
     
  9. Silent Down icon
     1 like

    Silent Down is a website uptime and performance monitoring platform, to keep an eye on your application and instantly alert you if any issues arrive.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Online
    • Software as a Service (SaaS)
     
  10. Lean20 Ping icon
     2 likes

    Unlimited monitors checked from multiple location every minute. Monitor any port or setup a "heartbeat" that works well for cron jobs or any service behind a firewall. Be alerted as soon as your service is offline via email or app integration.

    Cost / License

    • Paid
    • Proprietary

    Application type

    Platforms

    • Software as a Service (SaaS)
     
  11. Uptimely icon
     1 like

    Uptimely simplifies monitoring the uptime of your services, alerts you to downtime, and helps you create status pages to keep your customers informed.

    Cost / License

    • Freemium
    • Proprietary

    Application type

    Platforms

    • Online
     
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