With the release of macOS 14 Sonoma, Apple has stopped supporting classic Mail plugins and replaced them with so-called extensions.
Due to a bug in Apple Mail it can happen that Mail crashes when Mail extensions and additionally the Apple Mail junk mail filter are activated. The bug has already been reported to Apple by Marketcircle, the maker of the Daylite app, and we hope that Apple will fix it in the near future.
For the time being, please follow these steps to deactivate the junk mail filter:
- Open your Mac's System Settings and navigate to Privacy & Security -> Others -> Extensions -> Added extensions
- Under Daylite uncheck the box next to com.apple.email.extension (see screenshot below)
- Start Apple Mail
- Open the Apple Mail Settings, select the Junk Mail tab and disable junk mail filtering (see screenshot below)
- Select the Extension tab and re-activate DMA by checking the box next to Daylite Mail Assistant
More information on the new Daylite Mail Assistant extension is available on Marketcircle's website:
What You Need to Know About Daylite Mail Assistant on macOS Sonoma
Please note: if your are still using macOS 13 Ventura and you are also affected by these Mail crashes, you can disable the DMA extension and reactivate the classic DMA plugin instead. To do so, please follow the steps outlined in this HelpCenter article: Why can't I see the Daylite Mail Assistant after installing Daylite 2023.35.1 or newer?