Changing the status of emails in Outbox

[Joost]

Hello everyone,

I wanted to use mail merge to emails, because the outbox
got too full, I moved half of the emails to another
temporary folder.
When I moved these back to the outbox, the status changed
from "italics"- still having to send status to, a status
where Outlook doesn't recognize the message as one that
has to be sent out when I press "send and receive"
would anybody know a way to change the status of all
emails in one go?

Thanks,
Joost