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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.

 

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Migrate from Secure Email Virtual C100V to Avoid McAfee-Related Issues

  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
  • 887 Views
  • 2 replies
  • 0 Helpful votes

Configure alias

Hi all,        I have a requirement. Our company has some domian name, like abc.com, abc.com.cn, partner.abc.com, partner.abc.com.cn. Can I configure in ESA to identity that mailbox. I want to configure whole domain but not single alias. Can ESA ach...

360rundll by • Level 1
  • 4055 Views
  • 8 replies
  • 0 Helpful votes

Centralized reporting with clustering

Hello I have  2 ESA  ( 1 fully configured, and one new ) and one SMA. 1st ESA is fully configured and sends Logs, reports and policy quarantines to the SMA 2nd ESA is brand new with a basic IP configuration for management Should I create the ESA clu...

ESA Syslog

hi guys, just want to ask if an ESA push the mail_logs to an external syslog server does the ESA will not produce a log file in its disk? thanks

IronPort server not sending packets

Hi, I am unable to get any response from IronPort server placed in a Data center. I have checked with our firewall team and they said as below: As suggested this issue should be looked on the host (Iron Port). There are probably multiple interfaces i...

pbabu6001 by • Level 1
  • 926 Views
  • 3 replies
  • 0 Helpful votes
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