GaryK - 5:24 am on Nov 21, 2012 (gmt 0)
But you will not get far if you argue that you weren't tampering with the mails because the letter was just sitting there for anyone to slip it out, read it and pop it back into the envelope.
I think Bill was closer to the heart of the issue in his previous comment:
This means you should either a) operate your own personal email servers like I do
If your e-mail resides on a server that's not under your ownership or control it could be reasonably argued that it belongs to the owner of said server, who in turn can do whatever they want with it, or whatever they're ordered to do with it by some governmental entity.
To quote Rear Admiral Grace Hopper: It's easier to ask forgiveness than it is to get permission.