Update 6/7/2017: We heard your feedback and have improved the cancel workflow for messages that are marked for later. This is available in latest Insider Fast build 15.36.17606 rolling out today. See details below.
We are excited to announce another highly requested feature on our consumer as well as business UserVoice forums is now available: Send Later! This feature requires Office 365 Subscription and will be available in Insider Fast update 15.35.170509 rolling out today.
This feature requires Exchange 2016 CU5+ / Office 365 / Outlook.com email accounts. Please note, your Outlook.com account has to be on the Office 365 backend (see announcement).
How does it work?
The first email you compose on the new build introduces the feature with a callout:
You can now send later, using the option in the dropdown on Send button or Draft menu. Once you select the option, you can set the date and time when message should be sent:
The message is saved to Drafts folder - icon on message list shows it's to be sent later and infobar in Preview Pane shows the time it will be sent with an option to Cancel Send. Note: Once scheduled Outlook does not need to be open to send the message at later time.
How do I cancel message from being sent?
Clicking on Cancel Send will prompt you for confirmation and message is opened up as draft so you can edit and send / send later.
If one or more messages that is marked for later is deleted from drafts, you will get a confirmation and the message(s) are saved to drafts.
Note: You can only Cancel Send if you are online
Please contact us using Help > Contact Support