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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

Hi, I would like to check for upgrading of Firmware version of SMA M300V. Current Version: 9.1.1-005 and I would like to upgrade to Version: 9.1.2-013 . But in the list, this version not include. Kindly help to advise how to upgrade for it.

The Critical message is:  Log Error: Push error for subscription Ironport_MTA_data: SCP failed to transfer to 10.148.160.71:22: write: Broken pipe lost connection. Version: 9.7.1-066 How to resolve this issue?

pbabu6001 by Level 1
  • 854 Views
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Hi there I can´t update my Sophos Anti-virus, I tried to force by issuing this command: >antivirusupdate force But no success Do you guys have any other way beside opening a case      SAV Engine Version        3.2.07.363.1_5.22 (expired)    IDE S...

Hi Team, We, have TLS enabled for the recipient/External domain but the mails are not getting deliver ?? Error is as below : Message 445708356 to xyz@netins.net bounced by destination server. Reason: 5.4.7 - Delivery expired (message too old) ('000',...

bsrinu001 by Level 1
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I am doing my ESA renewal and I can't get past the acronyms.  What is the difference betweenESA-ESI-SMS-1K and  ESA-ESI-SMS-1What is CON-SNT-SMS-1Thanks

CD by Level 1
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