Restore Zimbra mailbox with zmmailbox connection refused

i'm trying to import mailboxes with

zmmailbox -z -m "$user@$domain.com" postRestURL “//?fmt=tgz&resolve=reset” $SOURCE

but always i get:

zclient.IO_ERROR (Refused connection)

i have 3 days reading the zimbra forums and nothing i've tryed set zimbraAttachmentsIndexingEnabled to FALSE (for account and COS) and zmcontrol restart as zimbra user

There other way to restore a mailbox account without zmmailbox and without using zmlmtpinject i don't wanna extract all mailboxes some have 20GB