If it's past the 5 second point and it is to a gmail address, then it could try ... | Hacker News

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		amichail on March 19, 2009 \| parent \| context \| favorite \| on: Undo Send in Gmail If it's past the 5 second point and it is to a gmail address, then it could try to undo without telling you if it was successful.

functional-tree on March 19, 2009 [–]

That would be of little use; you couldn't resend or assume that they had or hadn't seen it. It would be no better than not having any undo at all.

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