The 2$ plan does not sync with anything. The 3$ plan only sync's mobile with webmail (big woop). For "real" business email you need rackspace exchange which is

The 2$ plan does not sync with anything. The 3$ plan only sync's mobile with webmail (big woop). For "real" business email you need rackspace exchange which is 10$ a month per user, this adds up very quickly with a lot of users.