mkdir $T/lists-$D
ln -s /var/lib/mailman $T/lists-$D/mailman
-export GZIP="--rsyncable -9"
export RSYNC_RSH="ssh -ax"
-nice tar --create --gzip --dereference --directory=$T --file=$T/$B lists-$D
+nice tar --create --dereference --warning=no-file-changed --directory=$T lists-$D | nice gzip --rsyncable -9 > $T/$B
nice rsync --preallocate --fuzzy $T/$B backup::backup
rm -rf $T