Руководство Пользователя для Cisco Cisco Email Security Appliance C170

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11-15
Cisco AsyncOS 9.5 for Email User Guide
 
Chapter 11      Content Filters
  How Content Filters Work
Envelope Sender
$envelopefrom
or
$envelopesender
Replaced by the Envelope Sender (Envelope 
From, <MAIL FROM>) of the message.
Envelope Recipients
$EnvelopeRecipients
Replaced by all Envelope Recipients 
(Envelope To, <RCPT TO>) of the message. 
File Names
$filenames
Replaced with a comma-separated list of the 
message’s attachments’ filenames.
File Sizes
$filesizes
Replaced with a comma-separated list of the 
message’s attachment’s file sizes.
File Types
$filetypes
Replaced with a comma-separated list of the 
message's attachments' file types.
Filter Name
$FilterName
Replaced by the name of the filter being 
processed. 
GMTimeStamp
$GMTimeStamp
Replaced by the current time and date, as 
would be found in the Received: line of an 
email message, using GMT.
HAT Group Name
$Group
Replaced by the name of the sender group 
the sender matched on when injecting the 
message. If the sender group had no name, 
the string “
>Unknown<
” is inserted.
Mail Flow Policy 
$Policy
Replaced by the name of the HAT policy 
applied to the sender when injecting the 
message. If no predefined policy name was 
used, the string “
>Unknown<
” is inserted.
Matched Content
$MatchedContent
Replaced by the value (or values) that 
triggered a content-scanning filter. Matched 
content can be a content dictionary match, a 
smart identifier, or a match to a regular 
expression.
Header
$Header['string']
Replaced by the value of the quoted header, 
if the original message contains a matching 
header. Note that double quotes may also be 
used.
Hostname
$Hostname
Replaced by the hostname of the Email 
Security appliance.
Internal Message ID
$MID
Replaced by the Message ID, or “MID” used 
internally to identify the message. Not to be 
confused with the RFC822 “Message-Id” 
value (use $Header to retrieve that).
Receiving Listener
$RecvListener
Replaced by the nickname of the listener 
that received the message.
Receiving Interface
$RecvInt
Replaced by the nickname of the interface 
that received the message.
Table 11-3
Action Variables (continued)
Variable
Syntax
Description