Cisco Cisco Email Security Appliance C190 Guida Utente
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User Guide for AsyncOS 9.8 for Cisco Email Security Appliances
Chapter 9 Using Message Filters to Enforce Email Policies
Message Filter Actions
Related Topics
•
Attachment Groups
You can specify a particular file type (“exe” files for example) or common groups of attachments in the
attachment-filetype
and
drop-attachments-by-filetype rules
. AsyncOS divides the attachments
into the groups listed in
Replace URL with
text, based on
URL reputation
text, based on
URL reputation
•
url-reputation-replace
•
url-no-reputation-repla
ce
ce
Modify URLs or their behavior based on the reputation of
the URL.
the URL.
Use a separate action to handle the case in which the
reputation service does not provide a score for a URL.
reputation service does not provide a score for a URL.
Defang URL based
on URL reputation
on URL reputation
•
url-reputation-defang
•
url-no-reputation-defan
g
g
Redirect URL to a
Cisco security
proxy, based on
URL reputation
Cisco security
proxy, based on
URL reputation
•
url-reputation-proxy-re
direct
direct
•
url-no-reputation-prox
y-redirect
y-redirect
Replace URL with
text, based on
URL Category
text, based on
URL Category
url-category-replace
Modify URLs or their behavior based on the category of
the URL.
the URL.
.
Defang URL based
on URL category
on URL category
url-category-defang
Redirect URL to
Cisco security
proxy, based on
URL category
Cisco security
proxy, based on
URL category
url-category-proxy-red
irect
No Operation
no-op
No action is performed. See
.
*Skip Remaining
Message Filters
Message Filters
skip-filters
Ensure that this message is not processed by any other
message filters and continues through the email pipeline.
See
message filters and continues through the email pipeline.
See
.
*Drop message
drop
Drop and discard the message. See
*Bounce message
bounce
Send the message back to the sender. See
*Encrypt and
Deliver Now
Deliver Now
encrypt
Use Cisco Email Encryption to encrypt outgoing
messages. See
messages. See
.
* Final Actions
Table 9-5
Message Filter Actions
Action Syntax
Description