def upload_by_mail(pictures, mail_list):
    """Gather mail list, send task to upload."""
    addresses = []
    print(mail_list)
    # Mail can be activated but not mapped to this button
    if len(mail_list) > 0:
        print("mail list has mails in it")
        for mail_num in mail_list:
            addresses.append(get_key(mail_num, "address"))
        print("after action")

        send_mail(addresses, pictures)
    else:
        print("Mail activated but no mails choosen on this button")
    print("after mail upload")