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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
  • 898 Views
  • 2 replies
  • 0 Helpful votes

MessageSize - IronPort reports

I am trying to get message trace reports from Ironport - SMA-M1060-K9 centralized reporting server for one month which message size of each messages however, message-size is not captured when the logs are exported. Is there any chance to get message-...

Resolved! Modify %new_quarantine_messages%

Hello,We would like to remove this link: "https://www.cisco.com/c/en/us/support/docs/security/content-security-management-appliance/214391-administrative-details-on-trailblazer.html" from the %new_quarantine_messages%. Is this possible? (ESA)Thanks,B...

Resolved! ESA not Communicating with the Update Server

For the last two days days, I've been getting this email from our ESA appliance. The Warning message is:The updater has been unable to communicate with the update server for at least 1h.Last message occurred 8 times between Thu May 28 21:25:22 2020 a...

Twilhite by • Level 1
  • 7389 Views
  • 6 replies
  • 0 Helpful votes

Resolved! ESA/SMA limited Updates Available

Hello, our both products ESA - 13.0.0-392SMA - 13.0.0-249 or not receiving the latest upgrades. ESA suggests 13.0.1, SMA does not suggest anything. I already found the following article:https://community.cisco.com/t5/email-security/esa-not-communicat...

pwe by • Level 1
  • 2136 Views
  • 1 replies
  • 0 Helpful votes

Resolved! Configure Outgoing Email from Office 365 to Cloud Email Security CES Outgoing Listener

Hi!I am following this document to configure outgoing email from O365 to CES - https://www.cisco.com/c/en/us/support/docs/security/cloud-email-security/214812-configuring-office-365-microsoft-with.html#anc8 Is there something I am missing about the O...

Zone based firewall block smtp

i dear friends, i have exchange server 2016 and this server connect to internet via cisco router 2911, when users send mail with attachment these mail stay in queue exchange server.but when i turn of zone based firewall mails send normaly.help plz.ho...

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