# randomly. I'm guessing they are related to running 2 instances of
# exim which share the same spool. So, if we have some, but not in
# the last 5 minutes, and less than 20, it should be fine to clear
# randomly. I'm guessing they are related to running 2 instances of
# exim which share the same spool. So, if we have some, but not in
# the last 5 minutes, and less than 20, it should be fine to clear