File debian.prerm of Package greylisting-spp

#!/bin/sh

if [ "$1" = "remove" ]; then
    echo "Trying to remove greylisting-spp from /etc/qmail/control/smtpplugins..."
    cd "/etc/qmail/control"
    grep -v '^plugins/greylisting-spp$' smtpplugins >smtpplugins.new && \
      mv smtpplugins.new smtpplugins
fi