The zmmboxmove command has a -sync option....and I always use it.....but I don't know why.

The online documentation is pretty thin. The CLI help just says...

Code:
-sync,--sync         Run synchronously
OK great....run synchronously with what? It runs synchronously with other zmmboxmove actions? It runs synchronously and allows the user to stay logged in? It runs synchronously with the 6 o'clock train to Waxamahatchee?

Can someone shed some light on that. I'm curious if I do or don't need to use that option and what affect it has on the mailbox or server.

Thanks,
Matt