Hi, Currently dryrunning a source server with Code: ./migrate --only-client=USERNAME --only=mail I created the same username as reseller so on the new farm hes a client +. Expecting that every mail from username will be processed, except when its "Starting API calls." its processing everything: Its creating the client with C2_2 and all other this like DB / dbuser websites etc. For me i would think that it would only do: - MailDomain - MailaliasDomain - MailUser - MailForward - MailAlias - SpamFilter Also i changed some mailboxes plus domains to another server within the farm using a change in the change DB and resync. Its displaying: [WARN] mail name EMAILADRES is taken.s.nl (EMAILADRES). can i assume that those mail addresses wont transfer to the new target server? Even though I manual deleted those folders on the server the mailboxes don reside any more. after the resync the folders still get created.