We have 3 offices connected by VPN-routers. We already work with NT4 and Exchange 5.5 through a Site Connector, with Replication. Everything works fine. No problem at all. We have a third party tool to collect the POP3 messages. We consider to upgrade to W2K and Exhange2K, but we are unable to make a simliar connection as in Exchange 5.5 through VPN. The 3 Offices have a fake domainname for internal use only (e.g. abc.com, 123.com and xyz.com). All 3 offices download their mail from individual pop3-boxes from a single domain (e.g. domain.com). I'v read a lot of documents, but I don't know where to start. Is there anyone who has a similar workaround ? Thanks for your help. Regard Marco