Cisco Cisco Email Security Appliance X1050

This section describes the new features added in Cisco IronPort AsyncOS 7.5 for 
Email.

AsyncOS 7.5 updates the Virus Outbreak Filters feature, now Outbreak Filters, to 
protect your users from the growing trend of low-volume, targeted email attacks 
in addition to virus outbreaks. The messages used for these threats, such as 
phishing messages, scams, and malware distribution, are complex, evolving, and 
can be more difficult to detect than widespread spam, phishing, and virus 
outbreaks. The enhancements in the Outbreak Filters feature offer your users 
protection from these attacks and prevents them from downloading malware or 
distributing sensitive information. The Outbreak Filters feature can rewrite URLs 
in messages to protect recipients from browsing to malicious websites and add 
disclaimers to suspect messages to warn recipients.

As part of this update, the previous CLI commands for Virus Outbreak Filters 
have been renamed:

vofconfig is now outbreakconfig

vofflush is now outbreakflush

81079

Previously, if a mailing list had email addresses with mixed cases, the Email Security 
appliance would send duplicate messages to the addresses with mixed cases if an 
LDAP routing query was enabled on the appliance. This issue has been resolved.

79501

Previously, if an end user attempted to modify a system-generated spam quarantine 
URL, all subsequent spam quarantine users would receive an error when attempting 
to access the quarantine. This problem no longer occurs.