However, the recipient will be informed that you attempted to recall the message. If the message is marked as read when the recall message arrives, the recall attempt will fail and the message will remain in the recipient’s inbox.The recipient is then informed that you have recalled the original message.
Whether the recall works or not depends on whether the mail has been read. If the recipient has the “Automatically process meeting requests and responses to meeting requests and polls” feature enabled, both the original message and the message to recall the e-mail will be stored in the recipient’s inbox. Scenario 1: The “Automatically process meeting requests and responses to meeting requests and polls” feature is enabled (as default). The following scenarios are possible according to Microsoft. Whether an already-sent e-mail can be replaced by a new message depends not only on the requirements listed above, but also on the recipient’s Outlook settings.