Q is what you want to do with backup
1) if its for BACKUP and RESTORE on frequent basis..like your company and customer keep asking for restoring the mailboxes and their previously deleted emails and stuff ..then yes sync is really imp and required.
2) if you only want to backup for Disaster recovery..like you running 5000 users and 20 GB email and in case of HW failure or some other %$^%$ happens to your production server you like to go back to last backup..in that case 98% of the time you can live with
”out of sync” and how much out of sync you would go..2 hours of email or less..
My point is to prepare for disaster recover not really into restoring stuff on regular or per user biases
One point is we will integrate ADMIN functions how users can be added and removed in our control panel so we can HALT that for 1 hours or less it takes to backup so USERS DB wont go out of sync
More thoughts when we actually try this..right now main things is to learn and use Zimbra and understand all the issues and good things
Raj
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