I'm migrating my mail spool from old Cyrus version 2.3.16 to Ubuntu 22.04 package versions 3.4.3. While running the "cyrus reconstruct -V max" command after restoring the lib and spool data, I get a lot of the following sort of messages:
user.asparks.Personal Folders.House
FAILED TO REPACK user.asparks.Personal Folders.House with new version Mailbox format corruption detected
While it seems that the messages I've checked look fine, and no ugly log messages appear, am wondering the severity of this, and if there's anything to do to prevent it. Is there an explanation what it means and if it's a long-term issue? Can't really find anything from searches. Thanks for any advice.
-Alan
