About Registered Envelopes

Cisco Registered Envelope Service (CRES) enables organizations and individuals to communicate securely using Registered Envelopes. Registered Envelopes transmit encrypted messages. If the Registered Envelope is password-protected, recipients must register with Cisco Registered Envelope Service (free of charge) to obtain a password to open the encrypted messages.

Frequently Asked Questions

For more information about Registered Envelopes and the Cisco Registered Envelope Service, refer to the online help resources. You can also find answers to frequently asked questions (FAQs) by clicking the following link:

Frequently Asked Questions

First-Time Recipients

If you receive a password-protected Registered Envelope and you have not registered with the service, click the Register button. If the Register button is not displayed, leave the password field empty, and click the Open button to begin the registration process. For more information about opening a Registered Envelope for the first time, see the Cisco Registered Envelope Recipient Guide.

Alternatives for Opening Password-Protected Envelopes

After you register with the service, you can use the following methods to open a password-protected Registered Envelope:


Enter your username and password*, and then click the Open button. The message is decrypted locally on your computer.

When you open the attached HTML file on a mobile device, an HTML viewer such as Quick Look is launched, which will render the envelope, the attached HTML file inoperable. To successfully open the envelope, download the Cisco Business Class Email application from iTunes or Google Play. After downloading the application, go back to the original message and touch and hold the HTML file included with the message body, then touch "Open in Cisco BCE."

Open Online

Enter your username and password*, and then click the Open Online link. The message is sent to the CRES server for decryption, and the message opens securely on your local computer. Use the Open Online method if you cannot open an envelope with the Standard method.

Open by Forwarding

Forward the Registered Envelope to mobile@res.cisco.com. The service will send you an email message with a temporary link that you can click to securely retrieve the message using a web browser on your computer or PDA.To retrieve your message: click the link in the email, enter your username and password*, then click the Open button. Use this method if you cannot open an envelope with the Standard or Open Online method.

If you use the Open by Forwarding method, messages are temporarily stored on CRES servers. The messages are stored for up to 8 hours so that recipients can retrieve them. If you use the Standard or Open Online method, messages are not stored on CRES servers.

* Your company may have configured a single-sign-on (SAML) login for you to use with the Cisco Registered Envelope Service. In this case, a pop-up will appear that allows you to log in using your company's credentials.

Note: If your company has configured a single-sign-on (SAML) login, and you forget or lose your password, you will need to contact your company's support group to obtain or reset your password.