http://darknctsgpnlpui62dsbmetzz2izsckxb3kzdu4xlypsqsmpdv2m2aqd.onion/email.php
.- Client-side encrypted messages (using PGP)
You can use PGP to encrypt sensitive messages and all messages you send,
whether they are encrypted or not, will be stored encrypted by Sonar.
That is the main benefit with Sonar compared to other websites. Most
websites like Dread, forums, emails and markets allow you to send plain
text messages and they store plain text messages.