EFS retrieves mail from your ISP and addresses any messages to a local Mail Server (such as Microsoft Exchange or EMWAC IMS) to recipients FOR YOUR DOMAIN. It supports an unlimited number of users, mailing lists, account aliasing, brief and detailed transaction windows, automated checking, custom header checking, transaction logging and much more. What makes EFS unique amongst other pop3 retrievers is its 'internal routing' feature - the ability to accept mail specific to your domain. See our web site for setting up a cost-effective email solution!