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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
  • 1517 Views
  • 2 replies
  • 0 Helpful votes

Resolved! [solved] IronPort C370, /xml/status, description of gauge "bm_utilization"?

Hi, we're developing an addon to our monitoring system using values from https://<IronPort>/xml/status. Comparing the different parameters with content of WUI "System Status" page we were able to map all but one parameter: <gauge name=”bm_utilization...

Failover SMA procedure

Hi, In case of disaster recovery of a SMA. It's necessary to recreate the IP address from the failed SMA 1 to be the IP address on SMA 2. It's possible to keep SMA 2 IP addresses ?Another question, it's possible to use F5 VIP on Ironport C series for...

how to troubleshooting dmarc failures?

Emails from one particular vendor are failing the DMARC test on our Ironports, and they're claiming that since they have a valid SPF record, the test should succeed. They've asked for more information from us - from the Ironports - to determine why t...

mkoch7811 by • Community Member
  • 1401 Views
  • 1 replies
  • 0 Helpful votes

How to create content filter for messages coming from invalid MX record but domain exist?

Hi, Need your help for below query: If sender IP does not belong to sender domain or you can say MX record is invalid for sender domain mails should be quarantined or rejected.Sender Verification already enabled in my mail flow policy but default act...

Updating Isolated ESA and SMA Appliances

A customer needs to deploy ESA and SMA appliances in an isolated DMZ with no outbound Internet connectivity.  Without this connectivity, we will not be able to upgrade the AsyncOS or receive any of the security updates. Is there an recommended design...

Donald Moore by • Community Member
  • 1295 Views
  • 2 replies
  • 0 Helpful votes

i got mail blocked

i got mail from my printer authorized agent (both are private mail ID's).  but it has blocked due to that mail contains virus, blocked via Cisco appliance. how it has happened?  which one is that appliance? kindly answer it, i am very eager to know.

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