Using New Outlook on Windows for professional communication and productivity
@Darton, Nicholas said
[New Outlook for Windows] doesn't [have] a delay send rule to be set for all out going email
That is correct. I would suggest that you Vote for and Comment on this existing Feature Request:
Missing Send Delay rule
https://feedbackportal.microsoft.com/feedback/idea/21903077-7a8d-ef11-ac20-6045bda6e4c7
(You must "Sign In" at the top right of the Feedback page before you can vote).
And/Or you can use this Feature Request Search to look for similar existing Request to act on:
https://feedbackportal.microsoft.com/feedback/search/14c10fe9-fe8b-ef11-ac20-7c1e520b2631?q=Delayed+Send+Rule
I don't appear to have access to this feedback portal
It may be blocked by your Corporate IT. Try using a private/incognito browser and a personal Microsoft Account.