Distributed ldap-based mail system

Hello! I'd like to hear any thoughts how to deploy mail system in many offices, but with a single corporate address book and a single public key infrastructure. Perhaps, somebody wants to share his experience or has comments for my project ( http://www.rojkov.spb.ru/eng/projects ).

uploading & apache

Hi! I run apache to upload files on my computer (with web-form), but after upgrading to apache-1.3.9-13.1 this form doesn't work. If there are the tag then apache's child process gets a segfault after pressing button SUBMIT. Does anybody have the similar problem? or not?