By deleting the files and resetting the queues.

The following script file achieves this:

rm -f /home/test/hylafax/spool/sendq/q*
rm -f /home/test/hylafax/spool/recvq/*.tif
rm -f /home/test/hylafax/spool/log/c*
rm -f /home/test/hylafax/spool/docq/doc*
rm -f /home/test/hylafax/spool/doneq/q*
faxqclean

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