Outlook for Mac 2016 now includes the ability to send emails later. This has been around in the Windows version of Outlook since Outlook 2007 but is new to Max users.
The “Send Later” feature in Office for Mac 2016 is accessed via a drop-down next to the Send button itself. After clicking on this option, you’re then able to select the date and time you want to send your email, which is saved to your Drafts folder until it’s time.