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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
  • 426 Views
  • 2 replies
  • 0 Helpful votes

ESA C190 critical error

Hi all,           Today, I have received a email sended by ESA. Ironport C190 Alert // <![CDATA[ document.domain="mail.qq.com"; function getTop() { var f=arguments.callee,w; !(f.execption) && (f.execption = ""); if(!f.t) {try{w=window;f.t=w!...

360rundll by • Level 1
  • 996 Views
  • 1 replies
  • 0 Helpful votes

Resolved! Moving ESAs to a new SMA

We have several ESAs, both physical (8.5) and Virtual (9.6), and a 9.5 SMA.  We've encountered an issue, as well as a future upgrade path, which requires that we migrate the SMA to the 9.7 code base.  Unfortunately, we can't upgrade the Physical ESAs...

IRONPORT is stopping emails

HI. Our costumer told us that the mails coming from our domain is put to quarantie by Ironport. And we have problems with deliveribilyty for a week now. Our company was the victim of a bad spammer, and this incident made our domain blacklisted. It ...

Resolved! clamav

Hi, there were some info about the way how clamav is updated on ESA 10. But this is the first time I heard clamav is running on ESA. Does anyone know what clamav is used for on ESA? Email scanning? Scanning system files? Something else? Regrads, Jern...

Resolved! Ironport AMP

Seems like there are two features for Ironport ESA that are both called AMP? 1. Antivirus Malware protection 2. Advanced Malware Protection (sand boxing for zero day protection) We already have #1.   What is the part number for #2?

jtsai8585 by • Level 1
  • 3224 Views
  • 8 replies
  • 0 Helpful votes
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