To install for only you:
Double-click the Install in Home.command script located in the folder with the plugin. Or...
- Open your Home folder.
- Open the Library folder.
- Create a new folder called Address Book Plug-Ins.
- Copy PostCheck.bundle into this new folder.
To install for everyone that uses your computer:
- Open your Hard Drive.
- Open the Library folder.
- Create a new folder called "Address Book Plug-Ins" if one doesn't already exist.
- Copy the PostalCheck.bundle file into the Address Book Plug-Ins folder that you just created.
How to Use PostCheck
Using PostCheck is easy:
- Open Address Book. Check to see that the Edit button at the bottom is not pressed in:

- When you hover the cursor over an address label, it should become highlighted. Click on the label next to the address and select PostCheck.
Holding down the Option or Shift key while clicking on the address label enables other menus.