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Important Announcements

Cisco Secure Email Add-Ins No Longer Supported on Microsoft Outlook 2019

This is to inform you that, effective October 14, 2025, Microsoft Outlook 2019 is no longer supported for the Secure Email Encryption Service Add-In and Secure Email Submission Add-In.

To continue using these Add-Ins, we recommend upgrading to Microsoft 365. Starting October 2025, download and install the new manifest for:

- Secure Email Encryption Service Add-In from the CRES Admin Dashboard

- Secure Email Submission Add-In from the Cisco Software Download Portal

After downloading the manifests, follow the instructions provided in the Submission and Encryption Add-In guides. For more information, see: Cisco Email Encryption - End-User Guides.

TLS 1.0/1.1 Deprecation from AsyncOS for Secure Email Gateway, Starting version 16.5

We would like to inform you that starting with the AsyncOS 16.5 release, TLS versions 1.0 and 1.1 will no longer be available as configuration options in both the CLI and GUI.

To ensure secure email delivery and receipt, you should use TLS versions 1.2 and 1.3. These versions can be configured via the sslconfig CLI command or through the System Administration > SSL Configuration menu in the user interface.

For detailed instructions on updating TLS versions, please refer to the “System Administration” section of the User Guide for AsyncOS 16.0.x for Cisco Secure Email Gateway.

 

Forum Posts

  Important: Migrate from Secure Email Virtual C100V Models to Avoid McAfee-Related Issues Dear Valued Customer, We are reaching out to ensure your Cisco Secure Email environment continues to operate at optimal performance and reliability. As worklo...

dmccabej by Cisco Employee
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I need confirmation for what exactly SMA collect from ESA. Do SMA collect all information in Monitoring menu of ESA? What I mean is all of this menu: Do SMA only collect information from the incoming mail, sender groups, sender domain reputation, - ...

Joehard_0-1705990299174.png
Joehard by Level 1
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We currently have CISCO ESA C390 physical devices. We would like to replace these devices. We have a current vmware ESXi environment running VMware vSphere 7. Is this supported to host CISCO virtual appliances to replace our current physical devices?...

https://tools.cisco.com/bugsearch/ only allows to search with a bug Id.Any other terms will be rejected.The links in release notes are non-functional too.As I used BST last year, it allows to search for releases and other terms.How to search known an...

I'm looking to essentially create a dictionary of specific domains, that will be used by a content-filter that checks the "Envelope Sender" for a term in the content dictionary, and if it matches to added a CEF Log Entry that can be picked up by our ...

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