log.debug( "moving folder... " + sourceFolderId );
IMailFolder sourceFolder = mailbox.getMailFolderById( sourceFolderId );
try {
mailbox.moveFolder( sourceFolderId, targetFolderId );
log.debug( "...successful" );
}
catch (MailFolderException e) {
log.error( e.getMessage(), e );
if ( e.hasErrorCode( IErrorCodes.EXCEPTION_FOLDER_ALREADY_EXIST ) ) {