We're a public school system with three Exchange Servers 2003, each in a different school domain. Is it possible to have all three address books available to all three servers? If so, how? Thanks

I think if they are in same forest it is possible or else you may use External contacts for each Address list or do some sort of Galsync .. there may be a better idea or third party solution available

Natively, not easily. Contacts in the additional domains is the usual method. This Technet article explains how it can be done. http://technet.microsoft.com/en-us/library/bb123590(EXCHG.65).aspx Do it in a lab before on your live system though. Simon.Simon Butler, Exchange MVP Blog | Exchange Resources

Since the address books are faily static, can we somehow export them to file and import them on different domains?

That would have to be contact creation. You only need the display name and SMTP address though, so a list of them would be all that is required. Lots of articles around on how to import entries in to Contacts. Simon.Simon Butler, Exchange MVP Blog | Exchange Resources

Hi Winston4, Please refer to below kb, there are some detailed information about how to do it. http://support.microsoft.com/kb/555397 Regards! Gavin