Cisco Cisco Email Security Appliance X1070

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If a RADIUS external user changes the role mapped to their RADIUS group using the 

userconfig

 command in the CLI, AsyncOS does not forcibly log the user out or 

change their access rights during their session. The user continues to have the same 
access rights until they log out of the CLI.

78178

A C660, C670, X1060, or X1070 appliance may become unresponsive after 
processing a high amount of message traffic with large attachments over an extended 
period of time. This issue requires the work queue, scanning engines, and other 
AsyncOS features to be handling a constant high level of traffic in order to create the 
excessive memory usage that causes the appliance to become unresponsive.

51884

Attempting to edit a content dictionary that is larger than the recommended five 
thousand term limit from the GUI may sometimes cause the browser to hang.

Workaround: If your content dictionary is larger than the five thousand term limit, 
export the file, edit it, and import it again from the CLI. Do not edit larger files in the 
GUI.

74547

The content scanning engine in AsyncOS 7.5 for Email has improved performance 
from previous versions but it may run out of memory when scanning certain types of 
vCard attachments. When it does reach its memory limit, the engine restarts and the 
message and its attachment continue through the work queue.

72365

An improper reboot of the Email Security appliance may corrupt the CASE engine 
and cause emails to back up in the queue until the CASE engine is updated. Work 
around: Use the 

antispamupdate ironport force

 command to force a CASE engine 

update.