How do I make SeaMonkey use my Outlook Contacts list?
Add the following lines to user.js:
user_pref("ldap_2.servers.Outlook.description", "Outlook");
user_pref("ldap_2.servers.Outlook.dirType", 3);
user_pref("ldap_2.servers.Outlook.uri", "moz-aboutlookdirectory://op/");
Note: Outlook must be set as the system default mail client.