The fact that Fastmail work like this, are transparent about what they're up to and how they're storing my email and the fact that they're making logical decisions and have been doing so for quite a long time is exactly the reason I practically trip over myself to pay them for my email. Big fan of Fastmail.
I recently officially became a Fastmail user when pobox.com transitioned to Fastmail, and was very impressed with customer service when I had a technical question.
