Outlook Message Recall

Probably more than you want to know about recalling a message in Outlook. All in all, it is almost too dangerous and unpredictable and probably the world would be a better place if it were removed as a feature.

Recall Message functionality was designed with a passive rather than aggressive system in mind and is dependent on the Outlook clients' background "sniffer" idle process to remove the recalled message from the recipient's inbox. In order for this message to be recalled automatically, the specified criteria must be met. In addition, Outlook clients must also have the Tools, Options, Preferences, E-Mail Options, Tracking Options, "Process requests and responses on arrival" selected. This feature enables the background "sniffer" to run. When it detects an Outlook idle time (generally anywhere from 60-500 seconds) then it will run and process all unread items in the Inbox to see if any of them require its attention such as Meeting Requests, Read Receipt responses, or Message Recalls.