Cisco Cisco Email Security Appliance X1070 Mode D'Emploi

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Cisco IronPort AsyncOS 7.5 for Email Configuration Guide
OL-25136-01
Chapter 6      Email Security Manager
Each message splinter is then processed by anti-spam, anti-virus, DLP 
scanning (outgoing messages only), Outbreak Filters, and content filters 
independently in the email pipeline. 
 illustrates the point at which messages are splintered in the email 
pipeline. 
Note
Email DLP scanning is only available for outgoing messages.
Table 6-2
Message Splintering in the Email Pipeline
Note
New MIDs (message IDs) are created for each message splinter (for example, 
MID 1 becomes MID 2 and MID 3). For more information, see the “Logging” 
chapter in the Cisco IronPort AsyncOS for Email Daily Management Guide. In 
addition, the trace function shows which policies cause a message to be split.
W
o
rk Qu
eue
Message Filters
(filters)
↓ 
 
message for all recipients 
Anti-Spam 
(antispamconfig, antispamupdate)
E
m
a
il Secu
rity Ma
na
ger
 Sc
an
nin
g
 (Per Rec
ipie
n
t)
Messages are splintered immediately after 
message filter processing but before 
anti-spam processing:
 
message for all recipients 
matching policy 1
 
message for all recipients 
matching policy 2
 
 
message for all other recipients 
(matching the default policy) 
Anti-Virus 
(antivirusconfig, 
antivirusupdate)
Content Filters
(policyconfig -> filters)
 Outbreak Filters
(outbreakconfig, outbreakflush, 
outbreakstatus, outbreakupdate)
Data Loss Prevention
(policyconfig)
Note
RSA Email DLP scanning is only 
performed on outgoing messages.