cyrus.conf proper employment of 'ipurge'

I have an cyrus-imapd-3.0.17 installation and i am clearly missing something
important with respect to purging out old message traffic.  would like to have
my error pointed out.

This is what ps reveals:

cyrus   34453  0.0  0.0 29540  7104  -  SsJ  Wed08    0:20.23
/usr/local/cyrus/libexec/master -d

In cyrus.conf I have the following:

SERVICES {
  # add or remove services based on preferences
  imap          cmd="imapd" listen="imap" prefork=0
  imaps         cmd="imapd -s" listen="imaps" prefork=0

  # at least one LMTP is required for delivery
  lmtp          cmd="lmtpd -a" listen="localhost:lmtp" proto=tcp4
  lmtpunix      cmd="lmtpd" listen="/var/imap/socket/lmtp" prefork=0

}

EVENTS {
  # this is required
  checkpoint    cmd="ctl_cyrusdb -c" period=30
. . .

flushDel cmd="ipurge -X -d 1100 -f user/*/delivery"           at=0414

. . .

This does not have any effect however,  To give an example:

find /var/spool/imap/l/user/luserl/delivery/forwarding -name "*\." -maxdepth 1
-mtime +35 -type f | wc -l
   9219

What error am I committing?

Thanks,

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James B. Byrne                mailto:[email protected]
Harte & Lyne Limited          http://www.harte-lyne.ca
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