Pierre Igot: Once you click on the “Send” button, the message actually disappears from the “Drafts” mailbox, and the “Sent” mailbox changes to “Sending…” …where is the message that is currently in the process of being sent? It’s not in the “Sent” box, as we have just seen. It’s no longer in the “Drafts” box … Continue reading Mail’s “Sending…” Source