Mail stuck - can i re-deliver?

We have a commercial license with 2 domains, running prox 2.4 , something went wrong and it just stopped working, with thousands of messages in the postfix deferred/incoming directories, we were never able to figure it out so just built a new 2.6.

i ran this command given to me previously: mailq | awk ' /^[0-9A-F][0-9A-F]*[^*].*MAILER-DAEMON$/ {print $1}' | sed s/\*//g | xargs -rn1 postsuper -d

but never could recover and get mail flowing again.

is there anyway for me to manually copy/insert the messages into the new vm so we dont lose all that email?

Thanks