sendmail: process the queue manually when the load average is high
Contributed by Michilimackinac 
Tagged: Sendmail This command can be useful when the load average is high (not due to sendmail) and you want to flush all the mail off the system.
sendmail -OQueueLA=100 -q 0 -v
This will run through the queue once and process what it can (assuming of course that the load average is below 100 in this case)
Note: many sendmail options in the sendmail.cf file can be overridden with the “-O” option in this fashion.
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