Are outgoing emails in Zendesk encrypted to customers?

Question

Are outgoing emails in Zendesk encrypted to end users?

Answer

Zendesk Support and Zendesk Chat have opportunistic support for Transport Layer Security (TLS v1.2+), a cryptographic protocol for email exchanges. Every account has this feature enabled automatically by default. Emails are encrypted whenever an inbox provider supports encrypted messages. It's not possible to have a forced TLS connection. If the receiving server does not support TLS encryption then ESMTP is used instead.

For more information on the security features of Zendesk, see this page: Secure customer service.