CodeTwo Exchange Rules works with Microsoft Exchange Server 2000/2003, as well as with Microsoft Exchange Server 2000/2003 from the Small Business Server (SBS) package. The software should be installed on the server which is responsible for sending company's email.
If there is more than one Exchange Server within the organization responsible for sending email messages outside, CodeTwo Exchange Rules should be installed on each of them . If messages are only sent outside via one server within the organization, e.g. a front-end server, CodeTwo Exchange Rules should be installed only on that server.