Cisco Cisco Email Security Appliance C190 Guida Utente

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-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-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 

drop-attachments-where

-contains

Drop all attachments on message that contain the regular 
expression. Does the pattern occur the minimum number 
of times you specified for the threshold value? Archive 
files (zip, tar) will be dropped if any of the files they 
contain match the regular expression pattern. See 

The optional comment serves as the means to modify the 
text used to replace the attachment that was dropped. 
Attachment footers simply append to the message.

drop-attachments-where

-dictionary-match

Strip 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 

add-footer(footer-name

)

Add disclaimer text as a footer to the message. See 
“Message Disclaimer Stamping” in the “Text Resources” 
chapter for more information. 

add-heading(heading-na

me)

Add disclaimer text as a heading to the message. See 
“Message Disclaimer Stamping” in the “Text Resources” 
chapter for more information.

encrypt-deferred

Encrypt message on delivery, which means that the 
message continues to the next stage of processing, and 
when all processing is complete, the message is encrypted 
and delivered.