http://tutacomm6oqwlbbpd246mljjxpupuxxqj2jg5mfdyegeaetdauigslad.onion/blog/10-million-users
For instance, after the Snowden revelations back in 2013 Google promised to add end-to-end encryption to Gmail. But Gmail’s encryption project is long dead , and was probably only a marketing move to begin with. Other encrypted email services, such as Lavaboom had to shut down. Turning a secure email service into a success is hard because you have to invest a lot of time and effort before the product can come close to non-encrypted services in regards to functionalities.