The Global Catalog is used during email address resolution / email address lookups. DUH, now I feel dumb. I forgot that the e-mail address becomes/is part of the core user information and is part of the information of a Userid stored in the GC. John Tolmachoff MCSE, CSSA IT Manager, Network Engineer RelianceSoft, Inc. Fullerton, CA 92835 www.reliancesoft.com