Can you move files in finder while sending them via Mail?

Quick question.

If I'm sending a Mail with a few attachments I have in my Desktop, can I move this files to another folder while the mail is still in the Outbox?

I know the simple answer is why not just wait for them to go. But my OCD just won't let me.

Thanks for any answers.

 

Thanks!

I was wondering if maybe it made a temporal copy of the file while sending it.

And my problems is that the office internet is unbearably slow.