This guide describes how to integrate an LDAP into Outlook. If you want to integrate multiple address books (e.g. People and GÉANT/TCS user certificates) you must go through these steps multiple times.

• Select "File" on the top
• Select "Account settings"
• In the next dialigue field select " Address Books" on the right
• Click "New..."
• Select Internet Directory Service (LDAP)
• Click "Next"
• Enter "ldappv.rwth-aachen.de" as a server name
  
• As next click on the button "More Settings..."
• Fill in the field "Display name" with the name of the address book under which it can be found (RWTH address book, RWTH LDAP or the server name)
   
  Port: 636
  "Use Secure Sockets Layer" should be selected
• As next change to the "Search" tab and apply the folowing settings
   
  Search basis: Custom:
  • For People: ou=People,dc=rwth-aachen,dc=de
  • OR
  • For GÉANT/TCS user certificates: o=RWTH Aachen University,ou=GEANT/TCS,dc=rwth-aachen,dc=de
• Click "OK" to save the settings and finally restart Outlook
• Now you may find the new address book if you click "Address Books" in the dropdown menu "Address Books"