We have three schools, three locations tied together with T1s. We also have 3 domains. Can we use one Exchange Server to host email for these three different schools? We'd want to keep separate email domain addresses. Thank you

Hi, Sure you can. Are you considering Exchange 2003 or Exchange 2007? Are the schools in the same forest? Are there trust configured between the domains? This should help some: http://support.microsoft.com/?id=278888 Leif

Hi Leif, We currently have 3 Exchange Servers (2003) - each single server (no ISA). Would like to transist to 2007. Each school is in a different town - far as I know, they are independant domains - not under any other domain. Don't know about trust. How do I check? Thanks, John

Hi John, Are the three domains in the same forest? If so, the trust relationship will be created automatically. You only need to move the mailbox into one Exchange server. If they are in separated forest, the process is a little complicated. As you need to create many users manually, I dont recommend that. However, I have included the steps for your reference. Step 1: Create trust between domain A and domain B Step 2: ======== a) Create a user with mailbox in domain B and disable the user b) Right-click user in domain B and then click Properties c) Click the Security tab, and then click Add. d) Change "From this location" to domain A, type in user we would like to grant permission and click Ok. e) In the User Properties dialog box, click user in domain A, in the Permissions list, click to select the Allow check box next to the Send As permission. f) Click the Exchange Advanced tab, and then click Mailbox Rights. g) Click Add, change "From this location" to domain A, type in user we would like to grant permission and click Ok. h) In the Permissions list, click to select the Allow check boxes next to Read Permissions, Full Mailbox Access, and Associated External Account. Hope this helps. Thanks, Elvis