Cisco Cisco Email Security Appliance C170 Guia Do Utilizador

Some messages contain images that you may wish to scan for inappropriate 
content. You can use the image analysis engine to search for inappropriate content 
in email. Image analysis is not designed to supplement or replace your anti-virus 
and anti-spam scanning engines. Its purpose is to enforce acceptable use by 
identifying inappropriate content in email. Use the image analysis scanning 
engine to quarantine and analyze mail and to detect trends. 

drop-attachments-by-siz

e (<number>[, <optional 

comment>]) 

Drops 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 itself.

drop-attachments-where-

contains (<regular 

expression>[, <optional 

comment>]) 

Drops all attachments on message 
that contain the regular expression. 
Archive files (zip, tar) will be 
dropped if any of the files they 
contain match the regular expression 
pattern.

drop-attachments-where-

dictionary-match(<dicti

onary name>)

This filter action strips attachments 
based on matches to dictionary 
terms. If the terms in the MIME parts 
considered to be an attachment 
match a dictionary term (and the 
user-defined threshold is met), the 
attachment is stripped from the 
email.  See