Although this is not specifically on topic, it will help in the big picture of your overall mail system(s) design and implementation... Please do not forget to carefully craft proper SPF records for your domain or domains... then you would need to deal with SPF issues in the servers as to what you will and will not accept from others. http://www.openspf.org - rh -- Robert - Abba Communications Computer & Internet Services (509) 624-7159 - www.abbacomm.net