Mailbutler is fully compatible with the new macOS Sonoma.

But please note that, as with every new OS, Apple is still constantly releasing updates, as a result of which we are constantly having to release updates, too. So if you are using Apple Mail and Mailbutler for your business, we recommend waiting a couple more weeks/months before you switch to the new macOS to ensure a smooth experience.

For detailed information about Mailbutler on macOS Sonoma, head to this blogpost from our CEO.