sendmail - how to force queued mail to be sent

Hi all,

I have some messages queued by sendmail.

I would know if it possible to force those messages to be sent again.

This is an output from a script 
===========================================================================
Stats for: /var/spool/mqueue
Total messages in queue   : 2
Total messages in deferred: 1
Total messages 400 error: 0
Total messages conn. refused: 0
Total messages conn. reset: 0
Total messages conn. timeout: 1
Total messages deferred other: 1
===========================================================================

Bye
 Ambrogio