User Guide

11-13
AsyncOS 9.1.2 for Cisco Email Security Appliances User Guide
Chapter 11 Content Filters
How Content Filters Work
Add/Edit Header
Inserts a new header into the message or modifies an existing header.
Header name. Name of new or existing header.
Specify value of new header. Inserts a value for the new header into the
message before delivering.
Prepend to the Value of Existing Header. Prepends the value to the existing
header before delivering.
Append to the Value of Existing Header. Appends the value to the existing
header before delivering.
Search & Replace from the Value of Existing Header. Enter a search term
to find the value you want to replace in the existing header in the Search for
field. Enter the value you want to insert into the header in the Replace with
field. You can use a regular expression to search for the value. Leave the
Replace with field empty if you want to delete the value from the header.
Add Message Tag
Inserts a custom term into the message to use with RSA Email DLP policy
filtering. You can configure a RSA Email DLP policy to limit scanning to
messages with the message tag. The message tag is not visible to recipients.
For information on using messages tags in a DLP policy, see DLP Policies
for RSA Email DLP, page 17-6.
Add Log Entry
Inserts customized text into the IronPort Text Mail logs at the INFO level. The
text can include action variables. The log entry also appears in message
tracking.
S/MIME Sign/Encrypt on
Delivery
Performs an S/MIME signing or encryption of the message during the
delivery. This means that the message continues to the next stage of
processing, and when all processing is complete, the message is signed or
encrypted and delivered.
S/MIME Sending Profile: Performs an S/MIME signing or encryption
using the specified S/MIME sending profile. See Managing S/MIME
Sending Profiles, page 19-10.
Table 11-2 Content Filter Actions (continued)
Action Description