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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

  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
  • 346 Views
  • 2 replies
  • 0 Helpful votes

I am trying to pull log files from my SMA. I am logged in with the admin account and when I https://SMA_Name/system_administration/log_list?log_type=system_logs I get the message "Access Denied. You do not have the necessary privileges to view or edi...

We would like to leverage the existing ESA to be used as a UAT SMTP, but we want to restrict emails from the UAT application to send out to external (Internet) while maintaining production emails to send to external. Could you please advise how do we...

Hello All, Configure an Content filter which detects message language like japanese, chinese, korean etc. However i have observed legitimate english content language mails are also getting quarantine. Upon further investigation there some wording in ...

Vishal6 by Level 3
  • 434 Views
  • 3 replies
  • 0 Helpful votes

Hi,is it possible to modify system generated e-mails like the "Delivery Status Notification (Failure)" with outgoing content filters?I want to change the  Envelope Recipient of one special "Delivery Status Failure Notification" and send this notifica...

BVR EDV by Level 1
  • 259 Views
  • 0 replies
  • 0 Helpful votes

Hi All, I'm new here. I would like to set up spam quarantine notification on my ESA C395; refer to https://www.cisco.com/c/en/us/support/docs/security/email-security-appliance/118692-configure-esa-00.html.my question, I only have two options: send no...

RezaFH by Level 1
  • 4530 Views
  • 3 replies
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Hi All,My C160 is already cionfigured and working fine with abc@xyz.com domain. Now I want to add another email domain 123@yyy.com to same box. I need your help to know what will be the pre-requisite for this task;MX records need to be created for 12...

Hello All  Have configured incoming content filter for url with score 0-10. However im getting an below page if any url get block by proxy redirection. Is it proper redirection page or not.    

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Vishal6 by Level 3
  • 677 Views
  • 4 replies
  • 0 Helpful votes

Hi All, Need to enable Validity Check on the Sender's Domain i.e Envelope sender dns verification and Verify the From Header Using DMARC i.e applying an Enforce or Quarantine dmarc profile to Mail flow policy.  Basically i need to know what will be t...

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Vishal6 by Level 3
  • 349 Views
  • 1 replies
  • 0 Helpful votes

Dear Cisco Security I am pleased that I have been able to contact you for your help.I received 5 emails on Monday just gone from the date of this post which claims that I earned community badges, but today I have looked into my community account and ...

jtv250764 by Level 1
  • 322 Views
  • 1 replies
  • 0 Helpful votes
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