Apple has introduced a new plugin manager for Apple Mail on macOS Mojave which changes how Mail plugins behave after updates.
When you install or update a plugin, or when you update your version of macOS, you will need to enable your Mail plugins manually.
Follow the steps below to enable Daylite Mail Assistant:
- Open Apple Mail
- Along the Menu bar click Preferences.
- In the Mail preferences, click Manage Plug-ins…
- Select DayliteMailAssistant.mailbundle checkbox
- Click Apply and Restart Mail
Mail will restart, and the Daylite Mail Assistant pane should now show.
This article was originally published here.