Flushing DNS Cache on Windows and Mac


    Have you changed hosting providers recently and suddenly your Email client, i.e. Outlook or Mac Mail stops sending and receiving mails?
    Please view this article with instructions on how to flush the DNS using “command line”

    For Windows;

    1.  CLICK and HOLD the windows key + R.  Once the pop-up screen appears, type cmd (if not displayed already) in the address field.  Then click OK
    Now you can type the following command “ipconfig /flushdns” (exclude the inverted commas)
    Once successfully completed, you should receive a confirmation message stating: Successfully flushed the DNS Resolver Cache

    For Mac;

    2.  You will be required to run a “quick terminal command” and depends on your version of macOS
    Press COMMAND and SPACE to open Spotlight.  Now search for TERMINAL and click ENTER to open

    For the latest versions of macOS, please use this command;
    sudo dscacheutil -flushcache;sudo killall -HUP mDNSResponder

    Please use the below command for OS X 10.10.1, 10.10.2, 10.10.3
    sudo discoveryutil udnsflushcaches;sudo discoveryutil mdnsflushcaches

    Once completed, retry sending and receiving

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