Here are my 2 cents of hushmail.
IT'S NOT SAFE. IT'S NOT PRIVATE.
Here's a true story:
A friend of mine bought some goodies from a reliable source. As usual, transaction was completed via hushmail comms. Although the source is reputable and reliable, the package took way too long to reach my bud, he thought he'd been scammed, so he tried to find out wtf had happened. According to the source, he couldn't access his hushmail account 'cause it was frozen by hushmail administration, arguing that hushmail users connot run a biz via free personal or standard accounts.
How in the world did hushmail found out that this man was running a biz via hushmail personal account?
Obviously, they have been spying on it. And I know that this same sh**t happened to a couple more sources....all U.S. domestic btw. Thus, hushmail accounts comms are not private nor safe. Nevertheless his gear made it to him 6 weeks later with no prob.
Later on, I learned that hushmail and cyber rights are property of the same owner, and although I have no evidence other than "i heard a rumor", people out there are implying that it was bought by LE or by someone who is in full cooperation with the FEDS.
Just so you know, you can take it or leave it.
Play safe!