Since upgrade to Plesk 10, we have had times when mailboxes randomly turn off. On the Plesk CP, it shows that the mailbox is active. But emails are not delivered. The only way we can see that it is off is with the CLI: and the only way to turn it back on is by: Can anyone explain why this is happening? Is there any way we can know for certain which mailboxes are on or off? Is there a command we can run that will turn on EVERY mailbox on the whole server? Many thanks in advance for any and all assistance.