fix

            command = f'/postfixadmin/scripts/postfixadmin-cli mailbox add "{target_email}" ' + \

                      f'--password "{password}" --password2 {password_confirm} --name "{displayname}" ' + \

                      f'--quota {email_quota} --active 1 --welcome-mail 0'

            print(f'command=command')

            print(f'command={command}')

            stdin, stdout, stderr = ssh.exec_command(command)

            print(stdout.read())

            print(stderr.read())