Using hosted mail at 01.com.
This was working fine and then just noticed last week that it was no longer auto synching (had out of date contacts in zimbra, up to date contacts in my local address book)
Tried manual sync repeatedly. Many duplicate contacts created. Tried manually deleting every contact in zimbra (why is there no "select all button in the GUI!!!!) which takes about half an hour to do. Re-sync does same thing every time. Blows up right when it hits #64. No error message. Just quits synching.