That´s right Bau. Ganesh explained us that SMQ1 manage Monitor qRFC for the outbound queue.
By the way these queues are dynamicly process to other system. But in SMQ2 is manage monitor qRFC for the inbound queue come from source system. these queue have to re-process again but fiest we need to validate with User Key to identify what are business process the queue belog. Then you can to acccess to the queue you can move it to SM3 validate again and reprocess the queue, but never is suggested remove or erase queue lis except that user key gave us his approval.