Now in question Rated 3 out of 5 stars
**2015 edit** It no longer recognizes a longstanding account and now only has the paid version- despite claiming there still is the free version. I would pay for some services- but now I have some questions about this one. I am going to shop around a bit.
The point is once your email gets contaminated it pretty much is shot and you are going to have to start over. The key is to limit how often you give out your real address until you are sure that the folks you are giving it out to are trustworthy.
If you want high volume or some extra bells and whistles they have a cheap upgrade and it is centered in Europe.
The only thing to consider is disposable mail services will hide you from spammers- but not from big brother. For that other measures such as a VPN and encryption are in order.