#!/bin/bash

VIRUSMAILS_DIR="/var/lib/amavis/virusmails"

if [ -d $VIRUSMAILS_DIR ]; then
    cd $VIRUSMAILS_DIR
    find $VIRUSMAILS_DIR -type d -mtime +30 -exec rm -r {} \;
    find $VIRUSMAILS_DIR -type f -mtime +30 -exec rm -r {} \;
fi