Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

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Cisco AsyncOS 9.0 for Email User Guide

Chapter 23 Encrypting Communication with Other MTAs

Enabling TLS on a Listener’s HAT

GUI Example: Changing the TLS Setting for Listener’s HAT

Procedure

Step 1

Navigate to the Mail Policies > Mail Flow Policies page.

Step 2

Choose a listener whose policies you want to modify, and then click the link for the name of policy to
edit. (You can also edit the Default Policy Parameters.)

Step 3

In the “Encryption and Authentication” section, for the “TLS:” field, choose the level of TLS you want
for the listener.

Figure 23-3

Requiring TLS in a Listener’s Mail Flow Policy Parameters

Step 4

Submit and commit your changes.

The mail flow policy for the listener is updated with the TLS setting you chose.

CLI Example: Changing the TLS Setting for Listener’s HAT

Procedure

Step 1

Use the

listenerconfig -> edit

command to choose a listener you want to configure.

Step 2

Use the

hostaccess -> default

command to edit the listener’s default HAT settings.

Step 3

Change the TLS setting by entering one of the following choices when you are prompted with the
following questions:

Do you want to allow encrypted TLS connections?

1. No

2. Preferred

3. Required

[1]> 3

You have chosen to enable TLS. Please use the 'certconfig' command to

ensure that there is a valid certificate configured.