I’ve been trying out Airmail as my main email app. It’s quite nice, I like the built-in integrations, particularly with Evernote. By default, when you use the “Save to Evernote” action, it saves the current message to Evernote and opens the newly-created note. I went spelunking into the Airmail application directory, and found the way to disable the note-opening. Follow these steps: Quit Airmail (don’t know if this is necessary, but it can’t hurt) Open the Terminal app Run the f...