The Register Reply feature may be selected if a user would like to record the reply to an RMail message as a registered message as well, in other words,  to receive a Registered Receipt email as the reply. 

1. The recipient only presses the ‘Reply’ button on their mail program. No setup required.
2. The original sender receives a receipt for both the email sent and the reply email.
3. The user that is replying to the original message does not receive a Registered Receipt message.
4. If a message was sent using the “Unmarked” feature, the registered reply email is returned to the recipient without any banner or markings.
5. If the original message was sent “Marked as a Registered Email™ message”, the following text is added below the banner, “Your reply will be returned as a Registered Email message.”
6. The Registered Receipt email returned to the original sender for the register replied email contains the information of both the email sent and the reply.
7. The register reply message is counted towards the sender’s usage plan.
8. The service works by changing the “Reply To” address to an address with a hash routing the email back to the original sender and associating it to the original email sent. See below.