Comment Re:Distributed Mail (Score 3, Insightful) 470
The issue that Silent Circle points out is that SMTP is inherently unable to provide security against traffic analysis. Even if the body of the email is encrypted, the headers cannot be.
So yes, you can run your own email server, and require that only gpg traffic pass through it. But that won't keep you secure against traffic analysis (aka "metadata collection") with collection performed at your ISP.