Cisco Cisco Email Security Appliance C160

You can upgrade to release 7.6.3-019 from the following versions:

7.1.5-102 

7.1.5-104 

7.1.5-106 

7.5.2-101 

7.5.2-203 

7.5.9-004 

7.6.1-022 

7.6.1-025 

7.6.1-101 

7.6.2-014 

7.6.2-103 

7.6.2-201 

Read through and consider the installation and upgrade impacts listed in this section. 

When you upgrade AsyncOS for Email from the web interface or Command Line Interface (CLI), the 
configuration is saved to file in the /configuration/upgrade directory. You can access the upgrade 
directory using an FTP client. Each configuration file name is appended with the version number, and 
passwords in the configuration file are masked so they are not human readable.

You must be logged in as the admin to upgrade. Also, you must reboot the appliance after upgrading.

The network configuration of your Email Security appliance will be lost if you upgrade AsyncOS for 
Email from version 7.5.2-203 to 7.6.3-019, and revert back to version 7.5.2-203. If the network 
configuration is lost, emails are not delivered until you reset the network configuration by physically 
accessing the Email Security appliance.

For the AsyncOS 7.6 release, please use the following instructions to upgrade your Email Security 
appliance.

Save the XML configuration file off the IronPort appliance. 

If you are using the Safelist/Blocklist feature, export the Safelist/Blocklist database off the IronPort 
appliance. 

Suspend all listeners.