K12USA Support Knowledge Base

Making Our Email Services Your Default Email Program



Users can use the instructions below to make our web-based mail services the default E-mail program for their computer. This means clicking on mailto: links in a web browser will open up the E-mail compose window with the mailto: information already entered.


  1.  Right-click this link and save the k12usa_mail.reg file to your desktop.
  2.  After the download is complete, double-click the file. When you are asked if you want to add the information to the registry, answer Yes.
  3. Next, open the Internet Explorer browser, and go to Tools > Internet Options > Programs. Under the E-mail drop down, you can now choose one of our services to be your default E-mail program. Select it, then click the OK button.


  1. You will need to install a third-party program named Yahoo! Mailer. This small program was designed to work with any web-based E-mail software.

    Obtain the software from one of the links below:
  2. Copy the Yahoo! Mailer program from the disk image it was delivered in to your Applications folder.
  3. Open the Yahoo! Mailer program
  4. Enter this text into the dialog box:
  5. Click the set URL button to close the program
  6. Open the Mail program provided with the OS X operating system.
  7. Click the Mail menu choice, then click on Preferences...
  8. Click the General icon.
  9. Choose Select... from the pop-up selector next to Default Email Reader:
  10. Locate the Yahoo! Mailer program in the file dialog box, then click the Select button.
  11. Close the preferences dialog boxes and quit the Mail program.
Last Modified: 8 Years Ago
Last Modified By: sburns
Level: Beginner
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