Dear All, I am currently looking at method of madness for a DR site for our exchange network. Before I go any further, we are using Exchange 5.5 SP4, and we are taking a backup (via LTO tape) and it is taken of site. We want to have an active / active DR site, with mail entering into our main site and our DR site. Users will be looking at one mail box on a server in our main site. We want users mail boxes to be copied to both site, of which will be different sites (and servers) and be syncronised. I can find software that mirrors the entire server, or IS/DS edb files, but nothing that can replicate to a mailbox level directly to another exchange server. In a way we want to copy users mail boxes from one server to another in real-time, or near real-time. Does anybody know, or has come accross such a senario and what software they used, etc. I am just asking for pointers not bullet point descriptions and solutions!! Thanks in advance, James Elstone.