Dear Patti Quarles,
Good day! Thank you for posting to Microsoft Community.
In order to understand your query and provide possible solution, May I please double confirm if you are using the new Outlook for windows or classic Outlook for windows? Could you please provide us with the screenshot of your Outlook version details? see What version of Outlook do I have? - Microsoft Support
If you are using Classic Outlook for windows, May I please know if you are using the new cloud-based recall function or the old recall function? You can refer to Cloud-based Message Recall in Exchange Online - Microsoft Community Hub
If you are using cloud-based recall function, you (the recipient) will not require to confirm the recall or to accept the recall request, if the sender recalled the sent email from their side, it will be recalled automatically from the recipient's inbox.
However, you don't need to click on any button or option in Outlook to accept or decline the recall request. if you are using the old recall function and if the sender has requested to recall a message, you will prompted to confirm the recall action with the following dialog box. You can simply click OK. Once you clicked OK button and give permission to recall the message, the message will be recalled from your inbox.
Please feel free to let me know if there are any other question or if I've got you wrong.
Thank you for your precious time. Have a nice day.
Sincerely,
Libeamlak | Microsoft Community Moderator