[1]http://betabeat.com/2014/05/harvard-and-mit-students-launch-nsa-proo
   f-email-service/
   well, it
   seems too good to be truth.
   Recently we"ve got a lot of projects like that.
   Yes, there are enthusiasts.
   A real good ones.
   But we should also ask ourselves,
   (except what tpb-crypto mentiond), who these guys are? Could they be a
   project of... the NSA itself?
   Yes.
   I read their security section. The first thing in my mind (i am not
   tooooo paranoid:)) is that it is too good. It is absolutely free
   WITHOUT any mention of donations.
   Not even a mention.
   Who supports them? Can we trust him/it?
   Are they millionaires:)?
   We see not even one word about the money.
   Second of all, when you read their
   security section, its like a honey for bees - it invites you. Its
   ideal. Too much ideal.
   So yes, i rely on my feelings too, and there is something wrong with
   that.
   These guys are from Germany:
   [2]https://lavaboom.com/en/beta.html
   It seems to me a better choice (except the problem of the fact that
   Germany has got its nsa=bnd and that they give everything to nsa)
   In the end, we need to trust someone. But we dont read their minds:).
   And it could be, after all, a big fall.
   We"ve got pgp. Thanks God.
   But a 100% reliable and bulletproof email provider?
   No.

References

   1. http://betabeat.com/2014/05/harvard-and-mit-students-launch-nsa-proof-email-service/
   2. https://lavaboom.com/en/beta.html