[Exim] exim 3.22 retry problem

How can you tell if a retry rule is working? Are the retries logged
anywhere? I do not think exim is retrying to send to a remote smtp that is
down. Do I also need to have a queue runner? I only start exim with -bd
option. My retry rules are the default setting.

*                      *           F,2h,15m; G,16h,1h,1.5; F,4d,8h

Thank you for your time.
Jeff Hodge