I'm a co-founder of MailUp (www.mailup.com), an email and text messaging plaform with 3000 clients including Pirelli, eBay, Amnesty International and offices in Cremona, Milano and San Francisco. MailUp service allow companies managing email and sms deliveries to their customer bases, with advanced features such as dynamic content, A/B testing, triggered messages and an innovative, money-saving, "pay-per-speed" flat fee pricing model.