adjusting sendmail's "retry"

[Tony Laszlo <laszlo@example.com>]

I need to tweak my sendmailcf so that sendmail doesn't retry soft 
failures so often. Apparently, when a bit of mail can't be delivered 
to the intended recipient, my system begins retrying one per second, 
hundreds of times. 

Any hints would be very much appreciated! 

just guessing, but these are the bits of sendmailcf that 
look like they might be relevant(?):


# error mode
#O ErrorMode=print

# maximum hop count
#O MaxHopCount=17

# use Errors-To: header?
O UseErrorsTo=False

# timeouts (many of these)
#O Timeout.initial=5m
#O Timeout.connect=5m
#O Timeout.iconnect=5m
#O Timeout.helo=5m
#O Timeout.mail=10m
#O Timeout.rcpt=1h
#O Timeout.datainit=5m
#O Timeout.datablock=1h
#O Timeout.datafinal=1h
#O Timeout.rset=5m
#O Timeout.quit=2m
#O Timeout.misc=2m
#O Timeout.command=1h
#O Timeout.ident=30s
#O Timeout.fileopen=60s
O Timeout.queuereturn=5d
#O Timeout.queuereturn.normal=5d
#O Timeout.queuereturn.urgent=2d
#O Timeout.queuereturn.non-urgent=7d
O Timeout.queuewarn=4h
#O Timeout.queuewarn.normal=4h
#O Timeout.queuewarn.urgent=1h
#O Timeout.queuewarn.non-urgent=12h
#O Timeout.hoststatus=30m

# minimum time in queue before retry
#O MinQueueAge=30m

# how many jobs can you process in the queue?
#O MaxQueueRunSize=10000

# where do errors that occur when sending errors get sent?
#O DoubleBounceAddress=postmaster