Cisco Cisco Email Security Appliance C160 Mode D'Emploi

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10-4
Cisco AsyncOS 9.1 for Email User Guide
 
Chapter 10      Mail Policies
  Matching Users to a Mail Policy
First Match Wins
Each user (sender or recipient) is evaluated for each mail policy defined the appropriate mail policy table 
in a top-down fashion. 
For each user, the first matching policy wins. If a user does not match any specific policy, user will 
automatically match the default policy of the table. 
If a match is made based on a sender address, all remaining recipients of a message will match that 
policy. (This is because there can be only one sender per message.) 
Examples of Policy Matching
The following examples help show how the policy tables are matched in a top-down fashion.
Given the following Incoming Mail Email Security Policy table shown in 
, incoming 
messages will match different policies. 
Related Topics
Example 1
A message from sender 
bill@lawfirm.com
 sent to recipient 
jim@example.com
 will match policy #2, 
because the user description matches the sender (
@lawfirm.com
) and the recipient (
ANY
). 
Example 2
Sender 
joe@yahoo.com
 sends an incoming message with three recipients: 
john@example.com
jane@newdomain.com
, and 
bill@example.com
Table 10-1
Policy Matching Example 
Order
Policy Name
Users
Sender
Recipient
1
special_people
ANY
joe@example.com
ann@example.com
2
from_lawyers
@lawfirm.com
ANY
3
acquired_domains
ANY
@newdomain.com
@anotherexample.com
4
engineering
ANY
PublicLDAP.ldapgroup: 
engineers
5
sales_team
ANY
jim@
john@
larry@
Default Policy
ANY
ANY