Cisco Cisco Email Security Appliance C170 Guía Del Usuario

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9-10
Cisco AsyncOS 8.5.5 for Email Security User Guide
 
Chapter 9      Using Message Filters to Enforce Email Policies
  Message Filter Rules
Envelope Recipient
in Group
rcpt-to-group
Is the Envelope Recipient, (i.e. the Envelope To, 
<RCPT TO>) in a given LDAP group? See 
.
Note: The
 rcpt-to-group
 rule is 
message-based. If a message has multiple 
recipients, only one recipient has to be found in 
a group for the specified action to affect the 
message to all recipients.
Remote IP
remote-ip
Was the message sent from a remote host that 
matches a given IP address or IP block? See 
Receiving 
Interface
recv-int
Did the message arrive via the named receiving 
interface? See 
Receiving Listener
recv-listener
Did the message arrive via the named listener? 
See 
.
Date
date
Is current time before or after a specific time and 
date? See 
Header
header(<string>)
Does the message contain a specific header? 
Does the value of that header match a certain 
pattern? See 
.
Random
random(<integer>)
Is a random number in some range? See 
.
Recipient Count
rcpt-count
How many recipients is this email going to? See 
.
Address Count
addr-count()
What is the cumulative number of recipients? 
 This filter differs from the rcpt-count filter rule 
in that it operates on the message body headers 
instead of the envelope recipients. See 
.
SPF Status
spf-status
What was the SPF verification status? This filter 
rule allows you to query for different SPF 
verification results. You can enter a different 
action for each valid SPF/SIDF return value. See 
.
SPF Passed
spf-passed
Did the SPF/SIDF verification pass? This filter 
rule generalizes the SPF/SIDF results as a 
Boolean value. Se
.
Image verdict
image-verdict
What was the image scanning verdict? This filter 
rule allows you to query for different image 
analysis verdicts. See 
Table 9-2
Message Filter Rules
Rule Syntax 
Description