Onion Mail protect your privacy and anonymity and manage email with standard email address and/or onion network email.
start using Onion Mail, go to the official site and create your email address, decide if you want an email in the onion network or a standard mailbox.
Onion Mail is an open source email client with support for multiple accounts, search, IMAP push email, multi-folder sync, flagging, filing, signatures, BCC-self, PGP/MIME & more!
Onion Mail supports IMAP, POP3 and Exchange 2003/2007 (with WebDAV).
Install the app “OpenKeychain: Easy PGP” to encrypt/decrypt your emails using OpenPGP.
Its a fork of Open Source Android Email Client : K9-Mail https://github.com/k9mail/k-9 .