Send vendor email again

[sandomatyas]

There was some server error with the shop admin's mail server and the vendor doesn't received the order confirmation emails for few days but they need them.
Is there a way to send these emails again to the vendor only?
A simple 'send mails again' button for the orders would be awesome like there is something similar with RSForm Pro form-management component.
Also a custom script idea would be appriciated.