Cisco Cisco Email Security Appliance X1070 Libro blanco

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2. In the “Encryption and Authentication” section, for the “Use TLS:” 

field, choose the level of TLS you want for the listener.

3. Click 

Submit.

4. Click 

Commit Changes, add an optional comment if necessary, and 

then click 

Commit Changes in order to save the changes.

Note:

 You can assign a specific certificate for TLS connections to 

individual public listeners when you create a listener.

You can more specifically choose to set TLS Preferred by enabling TLS 

on ‘Accepted’ and ‘Trusted’ mail flow policies (“TLS Preferred”).

How to Enable TLS for Incoming Emails from Specific Domains 

or Users@specificdomain

Alternatively you may want to only enable TLS on incoming email for a 

specific address list.

How-To Secure Communications -  

Setting Up Transport Layer Security (TLS)

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