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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

Hello Dears, I have a doubt related to IronPort licenses that reach End-of-Sales and can't find anything ordering guide or another document that references these licenses. Which are the replacement PN's for them: IPAS-EN-1Y-19999 – IronPort Anti-Spa...

apereira3 by Level 1
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  • 1 replies
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Hello Dears, Can you help me please? I am looking for a paper that shows the upgrade supports on IronPort appliances ESA C370 and C380. I did'nt find anything related since I only found the standard configuration for that appliances. The picture att...

apereira3 by Level 1
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  • 4 replies
  • 0 Helpful votes

Hi all, I would like to block messages with http://*.tripod.com inside their body text. I have configured a Content filter with message body conditions  /\.tripod\.com/ and configured a Policy for that but I can't get block the email with that url. I...

Hi Team. We have an ESA C160 with version 7.6.3 and the filters with condition of "Message "Body" don't works. We add conditions like this: only-body-contains("La mayor parte del trabajo usted puede realizar desde casa, es decir, a distancia", 1) on...

Hi,  I have some questions i would like to ask regarding the ESA C380  How many mails per hour can the ESA C380 handle ? How can i achieve high availability with the C380 ?Is there a website where i can use the security management live ? Thanks