Cisco Cisco Email Security Appliance C170 Betriebsanweisung
12-11
Cisco IronPort AsyncOS 7.6 for Email Configuration Guide
OL-25136-01
Chapter 12 Cisco IronPortEmail Encryption
Figure 12-7
Configuring the Encrypt on Delivery Action
Step 9
Select whether to always encrypt messages that meet the condition or to only encrypt messages if the
attempt to send it over a TLS connection fails.
attempt to send it over a TLS connection fails.
Step 10
Select the encryption profile to associate with the content filter.
The encryption profile specifies settings about the key server to use, levels of security, formatting
of the message envelope, and other message settings. When you associate an encryption profile with
the content filter, the content filter uses these stored settings to encrypt messages.
of the message envelope, and other message settings. When you associate an encryption profile with
the content filter, the content filter uses these stored settings to encrypt messages.
Step 11
Enter a subject for the message.
Step 12
Click OK.
Step 13
After you add the encrypt action, click Submit.
Step 14
Commit your changes.
Step 15
Once you add the content filter, you need to add the filter to an outgoing mail policy. You may want to
enable the content filter on the default policy, or you may choose to apply the filter to a specific mail
policy, depending on your organization’s needs. For information about working with mail policies, see
enable the content filter on the default policy, or you may choose to apply the filter to a specific mail
policy, depending on your organization’s needs. For information about working with mail policies, see
Inserting Encryption Headers into Messages
AsyncOS enables you to add encryption settings to a message by inserting an SMTP header into a
message using either a content filter or a message filter. The encryption header can override the
encryption settings defined in the associated encryption profile, and it can apply specified encryption
features to messages.
message using either a content filter or a message filter. The encryption header can override the
encryption settings defined in the associated encryption profile, and it can apply specified encryption
features to messages.
To add an encryption header to a message by using a content filter, add the Add Header filter action to
the content filter, and enter the encryption header and its value. For example, if you want a Registered
Envelope to expire in 24 hours after you send it, type
the content filter, and enter the encryption header and its value. For example, if you want a Registered
Envelope to expire in 24 hours after you send it, type
X-PostX-ExpirationDate
as the header name
and
+24:00:00
as the header value.