Cisco Cisco Email Security Appliance C160 用户指南
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10-4
User Guide for AsyncOS 9.8 for Cisco Email Security Appliances
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.
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.
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.)
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.
, incoming
messages will match different policies.
Related Topics
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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