We recently had a hard drive failure and lost all our mailboxes, the backups proved to be useless... that's another problem for another day...
We were able to restore all user's mailboxes by exporting their zimbra.zdb files to a .pst then importing the PSTs to Zimbra with the Import Tool (we didn't know .zdb files can be imported until after we finished importing).
We also took the opportunity to update everyone's Outlook Connector to 4.5.6 (we are running ZCS 4.5.6).
Some users report on Outlook 2003, they cannot view their contacts via the Address Book. Their contact appear in their Contacts folder but they are not accessible by hitting 'To:' when composing a new message.
Zimbra Outlook Connector 4.5.6
Contacts -> Properties -> Outlook Address Book, shows a disabled option to 'Show this folder as an e-mail Address Book'
Thanks in advance for helping us fix this issue.