I was dragging an email message in Mail.app and intended to drag it to another folder. I accidentally went too far and then I was dragging an icon around the Dashboard. when I went back to Mail.app, the message was still there but missing the attachment. Where did it go?
It happened to me a second time, but this time the Dashboard wasn't involved. Is this a bug in Mail.app? The attachments were photos that were being displayed in-line.
I am using IMAP. So I can access the photo on my iPhone but it is not accessible on mail.app. I guess I need to file a RDAR.
Best Answer
The file may be in /Users/uname/Library/Containers/com.apple.mail/Data/Library/Mail Downloads
(This is where Mail stores unsaved attachments)