XMPP
XMPP: east [swirly 'a'] sure [dot] im
The current de facto default encryption algorithm for XMPP is OMEMO.
XMPP also supports OTR, OpenPGP, etc.
Email: east [swirly 'a'] east [dot] rip [gpg]
Email and encryption are incompatible; email is built using plain text protocols.
If you want real encryption, it’s required to encrypt email before it’s sent with encryption tools such as GPG.
You can read more about GPG on my blog or using articles in the ‘Resources’ section.
CURRENTLY UNAVAILABLE
Download and import my public key: pubkey.asc
Resources:
Keysigning - debian.org
OpenPGP Best Practices - riseup.net
Validating other keys on your public keyring - gnupg.org
The GNU Privacy Guard Manual - gnupg.org
Web of trust - Wikipedia.org
XMPP - xmpp.org
OMEMO Multi-End Message and Object Encryption - conversations.im
OMEMO - webencrypt.org