http://fozdean5irolwravjec3q5ugrxtgnllqibx3zmqb3ayb4ap7qsis4bid.onion/page/about
We do not encrypt your mailbox with PGP or GPG because it would make you unable to search anything in your mailbox and you shouldn't rely on services doing it for you, if you've high encryption requirements, such as those, do it from your own mail client by yourself. Rely on others to encrypt anything for you is dangerous; they might do, might just claim to do it or make a copy before encrypt, you don't and can't know.