Resolution
Confirm that all permissions are correct on the new server: 1. As root, run the zmfixperms command to repair any potential permissions problems with files under /opt/zimbra:
/opt/zimbra/libexec/zmfixperms
2. If you need to check /opt/zimbra/store and /opt/zimbra/index as well, you will need to use the -extended option. This will take much longer to run – potentially several hours in large environments – so run it only if necessary. Run this command as root:
/opt/zimbra/libexec/zmfixperms -extended