Migrating from Zimbra 8.5.0 to 8.8.12 using migration tool and Zextras 3.0.0 we are seeing a lot of Unrestored Items. Currently we can restore about 2% of items. So almost all fail to restore. The message is each time the same
Caused by: java.lang.RuntimeException: size not found in metadata
I tried
zmlocalconfig -e zimbra_lmtp_validate_messages=false
But that does have any effect. Exactly the same number of items fail to restore. With the same message.
Can we force restore in another way? Of should w consider those items lost.
I also tried migration from Zimbra 8.7.11 RHEL6 to Zimbra 8.7.11 Ubuntu 16.04. Exact same problem. Zextras suite 3.0 does not seem compatible with migration tool 2.4.12.
Or is that once you install Zimbra you are locked to the OS and version maybe even the physical machine? If you need to upgrade OS you basically just start a new mail domain? This is curious fact about Zimbra.