Cisco Cisco Email Security Appliance C160 Mode D'Emploi
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Cisco IronPort AsyncOS 7.1 for Email Configuration Guide
OL-22158-02
Chapter 6 Email Security Manager
spam and viruses that reach end-users mailboxes. “Conservative” policies are
tailored to avoid false positives and prevent users from missing messages,
regardless of policies.
tailored to avoid false positives and prevent users from missing messages,
regardless of policies.
Creating New Content Filters
In this part of the example, you will create three new content filters to be used in
the Incoming Mail Policy table. You will create the following:
the Incoming Mail Policy table. You will create the following:
Step 1
“scan_for_confidential”
This filter will scan messages for the string “confidential.” If the string is
found, a copy of the message will be sent to email alias
found, a copy of the message will be sent to email alias
hr@example.com
, and
the message will be sent to the Policy quarantine area.
Step 2
“no_mp3s”
This filter will strip MP3 attachments and notify the recipients that an MP3
file was stripped.
file was stripped.
Table 6-6
Aggressive and Conservative Email Security Manager Settings
Aggressive Settings
Conservative Settings
Anti-Spam
Positively identified spam:
Drop
Drop
Suspected spam: Quarantine
Marketing mail: Deliver and
prepend “
prepend “
[Marketing]
” to
the subject messages
Positively identified spam: Quarantine
Suspected spam: Deliver and prepend
“
“
[Suspected Spam]
” to the subject of
messages
Marketing mail: Disabled
Anti-Virus
Repaired messages: Deliver
Encrypted messages: Drop
Unscannable messages:
Drop
Drop
Infectious messages: Drop
Repaired messages: Deliver
Encrypted messages: Quarantine
Unscannable messages: Quarantine
Infectious messages: Drop
Virus Outbreak
Filters
Filters
Enabled, no specific
filename extensions allowed
to bypass
filename extensions allowed
to bypass
Enabled with specific filename
extensions allowed to bypass
extensions allowed to bypass