Cisco Cisco Email Security Appliance C160 Mode D'Emploi

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Cisco AsyncOS 9.5 for Email User Guide
 
Chapter 9      Using Message Filters to Enforce Email Policies
  Message Filter Rules
Message Filter Rules
Each message filter contains a rule that defines the collection of messages that a filter can act upon. You 
define the filter rules, and then you define a filter action for messages that return 
true
Related Topics
Filter Rules Summary Table
 
 summarizes the rules you can use in message filters.
Table 9-2
Message Filter Rules
Rule Syntax 
Description 
Subject Header
subject
Does the subject header match a certain pattern? 
See 
Body Size
body-size
Is the body size within some range? See 
.
Envelope Sender
mail-from
Does the Envelope Sender (i.e., the Envelope 
From, <MAIL FROM>) match a given pattern? 
See 
.
Envelope Sender in 
Group
mail-from-group
Is the Envelope Sender (i.e., the Envelope From, 
<MAIL FROM>) in a given LDAP group? See 
.
Sender Group
sendergroup
Which sender group was matched in a listener's 
Host Access Table (HAT)? See 
.
Envelope Recipient
rcpt-to
Does the Envelope Recipient, (i.e. the Envelope 
To, <RCPT TO>) match a given pattern? See 
Note: The
 rcpt-to
 rule is message-based. If a 
message has multiple recipients, only one 
recipient has to match the rule for the specified 
action to affect the message to all recipients.