What's New in AsyncOS 14.2
Feature |
Description |
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Sender Maturity |
In this release, the legacy Sender Domain Reputation (SDR) Domain Age functionality is replaced with Sender Maturity. Sender Maturity is an important feature to establish sender reputation. Sender Maturity is automatically generated for spam classification based on multiple sources of information and can differ from “Whois-based domain age.” Sender Maturity represents the Cisco Talos view of how mature a domain is as an email sender. The maturity value is tuned to enable threat detection regarding emails and generally does not reflect the domain age represented in “Whois-based domain age.” Sender Maturity is set to a limit of 30 days, and beyond this limit, a domain is considered mature as an email sender, and no further details are provided.
Sender Maturity is used to calculate the sender reputation. Immature domains are assigned lower reputation. Cisco Talos recommends you rely on sender reputation only for determining policy actions. Sender Maturity is exposed to fine-tune filters for specific, non-standard scenarios.
For more information, see Sender Domain Reputation Filtering. |
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New Sender Domain Reputation Verdicts |
From this release onwards, the Sender Domain Reputation verdicts are updated to accurately reflect the intended meaning and recommended usage. During the upgrade, the system automatically updates the Sender Domain Reputation message or content filter configurations to reflect the new verdicts. Make sure you review and configure the message or content filters accordingly. For more information about the recommended actions, you can take for each new SDR verdict, see the "SDR Verdicts" section in Sender Domain Reputation Filtering. After you upgrade to AsyncOS 14.2.x release, the legacy SDR verdicts in the content or message filters, reporting, and message tracking are replaced with the new SDR verdicts as follows:
For more information, see Sender Domain Reputation Filtering. |
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Sender Domain Reputation (SDR) Filtering Improvements |
In this release, the user experience and overall quality of the SDR service is enhanced with performance improvements, increased availability, and deployment of SDR. |
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Enhancements on Grouping Appliances for File Analysis Reporting |
The email gateway now uses the Smart Account ID to group appliances in your organization and to view the file analysis result of all appliances. When Smart Licensing is enabled on your email gateway, and you configure the appliance group for file analysis reporting, the system automatically registers Smart Account ID as the Appliance Group ID. You can change the Appliance Group ID at any time, and the change takes effect immediately without a Commit action. For more information, see (Public Cloud File Analysis Services Only) Configuring Appliance Groups. |
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Smart Software Licensing Enhancements |
Following are the enhancements made to the Smart Software Licensing feature:
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TLS Certificate Enhancement for Destination Control |
You can now choose a different certificate other than the certificate configured in the ‘Default' destination control entry for specific domains. You can choose a different certificate in any one of the following ways:
For more information, see Controlling TLS. |
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Modification of Classic Licensing - Expiration Date in Web Interface and CLI |
From this release onwards, the existing ‘Expiration Date’ column header in the web interface and CLI for classic licensing is modified as follows – “Expiration Date (including grace period” to indicate that the grace period is included in the expiration date.
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