This help article is for an old version of Direct Mail.
If you downloaded Direct Mail from the Mac App Store, then any purchases you attempt are handled by Apple. If the purchase fails, you will see an error message from Apple with more information. However, sometimes the error message simply reads "Unknown Error". If you run across this error message, here are some things to try:
You can try the following to fix the problem:
- Make sure you are using the correct App Store email and password
- Quit and re-open Direct Mail
- Try restarting your computer