Cisco Cisco Email Security Appliance C670 ユーザーガイド

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9-51
User Guide for AsyncOS 9.8 for Cisco Email Security Appliances
 
Chapter 9      Using Message Filters to Enforce Email Policies
  Message Filter Actions
Bypass Graymail 
Actions
skip-marketingcheck
Bypass actions on marketing emails. See 
.
skip-socialcheck
Bypass actions on social network emails. See 
.
skip-bulkcheck
Bypass actions on bulk emails. See 
Bypass Anti-Virus 
System
skip-viruscheck
Ensure that the anti-virus systems in the Cisco system are 
not applied to this message. See 
Bypass File 
Reputation 
Filtering and File 
Analysis
skip-ampcheck
Ensure that File Reputation Filtering and File Analysis 
are not applied to this message. See 
Skip Outbreak 
Filter Scanning
skip-vofcheck
Ensure that this message is not processed by the Outbreak 
Filters scanning. See 
Drop Attachments 
by Name
drop-attachments-by-na
me
Drop all attachments on messages that have a filename 
that match the given regular expression. Archive file 
attachments (zip, tar) will be dropped if they contain a file 
that matches. See 
Drop Attachments 
by Type
drop-attachments-by-ty
pe
Drop all attachments on messages that have a MIME type, 
determined by either the given MIME type or the file 
extension. Archive file attachments (zip, tar) will be 
dropped if they contain a file that matches. See 
.
Drop Attachments 
by File Type
drop-attachments-by-fi
letype
Drop all attachments on messages that match the given 
“fingerprint” of the file. Archive file attachments (zip, tar) 
will be dropped if they contain a file that matches. For 
more information, see 
.
Drop Attachments 
by MIME Type 
drop-attachments-by-mi
metype
Drop all attachments on messages that have a given 
MIME type. This action does not attempt to ascertain the 
MIME type by file extension and so it also does not 
examine the contents of archives. See 
.
Drop Attachments 
by Size 
drop-attachments-by-si
ze
Drop all attachments on the message that, in raw encoded 
form, are equal to or greater than the size (in bytes) given. 
Note that for archive or compressed files, this action does 
not examine the uncompressed size, but rather the size of 
the actual attachment prior to any decoding. See 
Table 9-5
Message Filter Actions
Action Syntax 
Description