We need to migrate mailboxes from one zimbra install to a remote one. I can't do a backup/restore or rsync method as the remote has it's own LDAP and settings it must maintain and I can't overwrite that. I've read all the migration stuff I could find. Looked into zmztozmig, REST, zmmailbox options. So I think I have a plan for the actual data move. However all of these require the accounts/domains to be pre-created on the target server. Ok, no problem there either - can bulk provision those. HOWEVER, what I can't find is how to capture the password on the source in order to set it up on the target. Will that get set when the tgz is loaded by zmztozmig or REST or zmmailbox? If not, how do I get it from the source to target account? In other words how do I pull it out of the existing Zimbra install in order to set it up on the target?
We need to make this a seamless migration for the users. It will involve changing DNS and such in order to point them to the new remote servers. We don't want them to have to change anything - just log into the new servers without knowing and finding their mailboxes.