It's better than sending the bits in the actual email. If you can revoke access to the attachment immediately after sending it, that's an improvement. I'm gue

It's better than sending the bits in the actual email. If you can revoke access to the attachment immediately after sending it, that's an improvement. I'm guessing ninety-something percent of mistaken emails with attachments are noticed within the first ten seconds after it's sent, so you could really use an undo button. So for that, it's a good solution. Me, I have the opposite problem. I write emails and forget to include the attachment, which necessitates I immediately send another copy with the attachment. I swear I did that recently and the recipient's GMail account blocked the email and all others from my address. I guess that behavior runs afoul of their spam algorithms.