Mac OS X - Disable Alerts for Messages from Unknown Contacts

September 2017


By default iMessage will display a notification each time you receive messages from unknown contacts. To disable this feature:
  • Open the Messages app.
  • Click on the Messages menu > Preferences.
  • Go to the General tab.
  • Clear the "Notify me about messages from unknown contacts" checkbox.

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Published by deri58. Latest update on May 12, 2015 at 03:38 AM by deri58.
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