Hi Ruth,  If a message is blocked during outbound delivery, it should be located in a quarantine folder in Manage >> Spool >> Spam Quarantine.  If the message is legitimate, you can click Actions >> Resend.

It wont even let the user send. When in web interface, red bar comes up saying they were flagged and wont let send. I assume this is because they hit a throttle level. The question is how do we as admins release this manually, is it possible?