Are outgoing emails in Zendesk encrypted to end-users?
Zendesk Support and Zendesk Chat have opportunistic support for Transport Layer Security (TLS), a cryptographic protocol for email exchanges, that is enabled automatically on every account. Emails are encrypted whenever an inbox provider supports encrypted messages. If the receiving server does not accept encryption, ESMTP is used instead.
For more information on Zendesk’s security features, see our page below: