Note also that a dedicated email service like Fastmail has a lot fewer ways you can accidentally violate TOS than, say, GMail. Your google account can get TOS'

Note also that a dedicated email service like Fastmail has a lot fewer ways you can accidentally violate TOS than, say, GMail. Your google account can get TOS'd for activity on YouTube, Drive, Chat, Photos, Docs, Blogger, etc. When was the last time you heard about someone getting TOS'd for the contents of an email being misunderstood?