How can I make mail retry sending messages in the Outbox?

Howdy all,

As the title says how can a force Mail to try to resend the messages in the outbox? I use my MacBook Pro in a number of different environments and when I am on one flakey access point in particular or when I have forgotten to open Safari to reauthorize recently on another network Mail will fail to contact the SMTP server. When this happens my message gets stuck in the outbox to be sent later. My problem is that I do not know how to get it out of there effectively.

Once I have fixed the transitive error in the network (or or the problem fixes itself) how do I get the messages out of the inbox? At this point I can send more messages with no problem and they will happily go out but those in the queue just sit there.

Now, I have tried a number of things like quitting and restarting Mail, bringing the various network interfaces back up and down, and other things to try to trick Mail into sending the queued messages but that has been haphazard at best. I can't help thinking that there is something obvious I am missing.

Thanks for any help!