Zimbra Backup/Restore- Single Mailbox

[nmsalert10]

We are running ZCS network edition 7.1 GA.

We are trying to restore a particular mailbox from the full backup taken a week back. When we try to use the same to restore, we receive the below error.

[zimbra@zmsa ~]$ zmrestore -a xyz@domain.com -restoreToTime "2011/05/12 09:03:31" -lb full-20111205.024940.937 -ca -pre restored_
using restore to time of 2011/05/12 09:03:31
Error occurred: no such account: Account ID for xyz@domain.com not found in backup full-20111205.024940.937


We have tried the web console also but this users' mailbox is not getting restored. Please advice on what is wrong.

[phoenix]

How about starting with a forum search: site:zimbra.com +"Error occurred: no such account: Account ID for" - Yahoo! Search Results