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  Installation Notes
18
Release Notes for Cisco IronPort AsyncOS 7.1.5 for Email Release
OL-22161-05
the Security Management appliance discards the reporting data for those features. 
If the Security Management appliance is running AsyncOS 6.7.0 or 6.7.3, it sends 
an alert once each time the reporting service begins, such as on a reboot, stating 
that the reporting service is receiving data that it cannot process.
Your Security Management appliance must be running AsyncOS 6.7.6 or later in 
order to use centralized reporting for the DLP and Marketing Mail features.
Re-enable SNMP
SNMP does not start when you boot the appliance after upgrading to AsyncOS 
7.1.1. Use 
snmpconfig -> setup
 and then 
commit 
to enable it.
Email Authentication
For DKIM Authentication, IronPort currently supports version 8 of the Draft 
Specification of ‘Authentication-Results:’ header.
For SPF/SIDF verification, the 
spf-passed
 rule is no longer available in content 
filters. To maintain backwards compatibility, the 
spf-passed
 content filter rule 
will be accepted from XML configuration files but it will be converted to the 
spf-status
 rule with corresponding arguments. 
spf-passed
 will be changed to 
spf-status == "Pass"
 and NOT spf-passed to 
spf-status != "Pass"
. You can, 
however, still use the 
spf-passed
 message filter.
Configuration Files
IronPort does not generally support the backward compatibility of configuration 
files with previous major releases. AsyncOS 7.1 does not support configuration 
files from AsyncOS 7.0.1 or earlier. 
Received Headers
When you configure AsyncOS to use received headers, you can specify that the 
header reflects one of the following hostnames:
  •
The hostname of the Virtual Gateway used for delivering the message
  •
The hostname of the interface the message is received on