@unexec if cmp -s %D/etc/mailmgr.conf %D/etc/mailmgr.conf.default; then rm -f %D/etc/mailmgr.conf; fi
etc/mailmgr.conf.default
@exec if [ ! -f %D/etc/mailmgr.conf ] ; then cp -p %D/%F %B/mailmgr.conf; fi
bin/mailmgr