Hello Paul, Sunday, March 2, 2003, 3:08:18 PM, you wrote: > Any one have any thoughts about how hard it > would be to write such a program, or does any one know of something that > will already do what I need it to do? Qmail supports LDAP. If I understand your needs correctly, this should do what you want. www.openldap.org -- Best regards, Ian mailto:ian@darksideofthemoon.org.uk