Mañana Mail from Microsoft Research.
Microsoft Research has released a plug-in for Outlook called Mañana Mail.
This little helper adds a “Send at 9:00” (or any predefined time) button to your mail that allows you to schedule your mail to be sent at the specified time the next day.
There is also an undo-feature that pops up for 10 secs when you send any message, allowing you to abort sending of the message or reschedule it to be sent “mañana”. How ofthen have I pressed “send” only to freak out about what I just did… Wrong To:, missing attachment or premature sending.