Is it possible to recall a message using Outlook or Office 365?

While it is possible to recall a message using Outlook for Windows, please be aware of the following limitations:

1. Messages can only be recalled from other UWindsor Office 365 users, not external accounts.
2. Messages can only be recalled if they have not been read.
3. Currently a recall can only be initiated from Outook for Windows.

To recall a message using Outlook for Windows, perform the following steps:

1. Open the message you wish to recall in your sent items by double-clicking on it.
2. In the open message go to the File menu and choose Info > Resend or Recall > Recall This Message
   
3. In the dialog box that pops up select either the option to Delete the copies of this message or Delete and replace them with a new message, and then click OK.
4. After submitting a recall request, usually less than 30 seconds later, the sender will get an email notification from the service with the subject "Message Recall Report for message [original message subject]"

Status updates are usually pretty quick but can sometimes take up to 5 minutes for a message with up to a few hundred recipients. For a large number of recipients (tens of thousands) the recall itself is still fast, but it can take up to 30+ minutes to retrieve the recall status for all recipients.