To sum up and add to the replies you've already gotten: If you're using
Exchange Server, you can try the "Recall this message" function, but it is
buggy and it requires the recipient to OK the recall, so the likelihood that
it will work as intended is not very good. And if you're not using Exchange
Server, you won't even have the Recall option, so there is no way to pull
back a sent message.
--
Jocelyn Fiorello
MVP - Outlook
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