It is important to know whether recalled message wassuccessful in Outlook or not. Selecting the message so it appears in the reading pane won't If you have the Classic Ribbon. You must double-click to open the message. Open the message that you want to recall. In the folder pane on the left of the Outlook window, choose the Sent Items folder. Double click on the message which is to be recall Click on messages>Actions>recall this message Select delete copies of this message and OK.
I suggest you submit your ideas via the following. Here is an official document for your reference: Can I recall a sent email in Outlook 2016 for Mac? While I totally understand your concern to have this feature included. Hi Dennis.R.Johnson, Recalling a sent email is not feasible in Outlook 2016 for Mac. Recall Email In Outlook For Mac 2018 Recall A Sent Email In Outlook For Macs Recall A Sent Email In Outlook For Mac Os How to delete/recall a sent email before recipients reading in Outlook? Let’s say you just now sent an email to an irrelevant recipient in Outlook by mistake, and you want to prevent this recipient from viewing this email.