Gmail issues on Mac OS X. [Nonexistent] | Sabletopia
When moving over from using Gmail via MS Outlook to OS X a little know error sometimes occurs with labels and folders. If Apple Mail reports “Mailbox Does Not exist”, or Thunderbird gives “[Nonexistent] Unknown Mailbox” then all you need to do is rename your labels. Folders created in Outlook became labels with the name … Continue reading "Gmail issues on Mac OS X. [Nonexistent]"