I'd like to import the userlist (email/phone #s) from 3 different companies. I know I can do an export and import with the command line tool. And I can use FTP to move the files around.
I'm just wondering if anyone has a best pratice on keeping my AD / GAL clean with these imported (the 3 other companies = 50X the number of users on my system). I rather get some pointers if anyone has some, then make a mess and have to clean it up.