I've noticed that when a user drags a folder from a PST file into his Zimbra mailbox, if it's not at the root level, the folder gets created but the emails never sync to the server. If the folder is created at the root level, then the emails sync, and then you can move it into a nested structure. The same thing happens if I try to migrate the .pst file directly.
Is this by design or a bug? Is there any way round it?
We're in the process of migrating several thousand users away from Exchange, and many of them have very complex folder structures, it's really not practical to do this for everyone.
Someone help please.