How Secure are the Emails which include my Scanned Mail?

All emails are encrypted using using industry standard TLS (Transport Layer Security) which is a protocol that helps provide privacy between communicating applications and their users during email delivery. When a server and client communicate, TLS ensures that no third party can overhear or tamper with any messages.

Please see "Can I choose to Disable the Email Attachments of my Scanned Mail?" if you would not like to receive your scanned letters via email.