We use exchange pop3 software to download emails from externally hosted email server and to forward exchange 2007 server.
We stopped this software and we are migrating our exchange server from 2007 to 2013.
We moved all users from exchange 2007 to 2013.
But when we restart the 2007 server, by mistake exchange pop3 server started automatically to download emails and forwarded them to the exchange 2007 server. And those email are not reached to 2013 server and get stuck in the queue of 2007.
How can we release them to the users.