1) For importing user's it's best to use zmprov and feed it a batch file. See zmprov -? for more options.
2) You can do this with a cronjob to look for the last modified/change date in the AD entires and add/sync them as needed. Also you can add a call to zimbra to your provisioning scripts so this is automatic.
3) This really depends on the usage profile, the message size, and the number of users that will be on the system at the same time. IMAP is a bit more chatty than the Web UI or Outlook connector so the connection type also matters. |