Delay or schedule sending email messages in Outlook
If you decide later that you want to send the message immediately, do the following: Switch to the Draft folder. Open the scheduled message and select the Edit pencil icon. Select Send Now. Schedule send for Outlook on Mac. Compose a message now, but schedule it to be sent later.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook on the web, Outlook.com, New Outlook for Windows, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019