Mailfois is the operating system for email marketing teams and agencies, on top of your ESP. Your ESP sends the emails and holds your customers; Mailfois runs everything behind each send: planning, mock-ups, brand and inbox checks, translation, sign-off, upkeep and results. Ask Mailfois, the email marketing assistant, answers questions from your own plan, brand kit and emails. Mailfois never holds subscriber lists or connects to your ESP. Free plan at mailfois.com.