Using Classic Outlook on Windows for personal email, calendar, and contact management
Dear _8183,
Good day! Thank you for posting to Microsoft Community. We are happy to help you.
Based on your description, I understand that you have a query "How can i set up a delay on all emails in New Outlook".
After doing test, I found that in the new outlook you may set up a delay on all email by setting the schedule send, go to Message as you are going to compose new message and click on the down caret then chose the “schedule Send” then customize the date and time.
In addition, there is still a limitation with the new product in that you can't save this setting for all of the emails that you send; instead, you have to choose the carat once again for each message and choose the "Last Chosen time" without customizing the time again.
We truly appreciate your kind understanding and patience in this situation.
Sincerely,
De Paul | Microsoft Community Moderator