Cisco Cisco Email Security Appliance C370D Weißbuch

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4

• 

Outbound TLS

• 

HTTPS

• 

Lightweight Directory Access Protocol (LDAPS)

Tip:

 You can use the same certificate for all four of the services, or you 

can use separate certificates for each.

How to Setup SSL Certificates on Cisco Email Security for TLS 

Encryption

** Before making any changes, go ahead and backup the Cisco Email 

Security configuration from “System Administration -> Configuration File”

Select “Plain passwords in the Configuration Files” as shown in the 

above picture.

Now….

• 

If you do not have a third-party certificate yet, then start below at 

Step #1.

• 

If you already have a certificate from a third-party Certificate 

Authority, then you can skip to step #3; however, the cert file you 

have must be just right. Here are instructions for properly exporting 

your existing certificate from IIS.

1. Create Certificate Request: click Network -> Certificates -> Add 

Certificate

Fill out the details for the certificate that you want to request from the 

third party CA. This should match the type of cert that you purchased.

In this case a wildcard certificate has been requested – “abc.com”.

For a single certificate, you could use something like “mx1abc.com”.

Click Next.

2. Download certificate signing request from Cisco Email Security:

• 

On the next screen you will see confirmation details on the certificate 

that you added

• 

Click “Download Certificate Signing Request” to download the CSR

How-To Secure Communications -  

Setting Up Transport Layer Security (TLS)

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