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SPFtoolbox is a Javascript and PHP app to look up DNS records such as SPF, MX, Whois, and more
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CDNJS Chrome Web Store Website

SPFtoolbox is an Application to check simple information such as SPF, DNS records, and more



There are many ways to contribute to SPFtoolbox.


big screenshot

How to install SPFToolBox

  • You have a Yunohost Server

Install SPFToolBox with YunoHost

  • Heroku


  • Install manually
  1. Dowload the latest release of SPFtoolbox
  2. Upload the contents to your webserver enabled with PHP 5.3+
  3. Extract the contents of the zip file on your server to your desired directory.
  4. Navigate to index.html
  5. Enter in your domain and submit!

Questions, Concerns, and Feature Request

  • Please create an issue or send me an email if you have feedback to give

This also comes as an extension!

Created by Charles Barnes

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