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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
  • 1500 Views
  • 2 replies
  • 0 Helpful votes

Dear all could you please tell me what is the meaning of this(please see attachment)? I got DMARC report and i analyzed it using  https://easydmarc.com/ . Is there something wrong?  

Dear All. Please help us to resolve email issue with our domain zclchemicals.com. some of our customer domain emails get blocked when we send from our domain. we have checked error from both end but no issue found. all the records found OK. please fi...

The customer reports me the following alarm:“An update Failure notification is sent when a service fails to update properly. This notification contains the opaque type for the update Service Name of the update service that has failed.” information be...

 Is there any way to automate this search and download a CSV, or at least create a URL that can be run at any time to download the results as CSV? Or, is there a commandline query or API call, or recommended search pattern in the log files, that will...

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DanielG_2020 by Frequent Visitor
  • 1389 Views
  • 1 replies
  • 0 Helpful votes

I see how to integrate Cisco Threat Response with an SMA, AMP for endpoints, Threatgrid, etc. What I don't see is how to integrate with an ESA - ironport device directly. Is this possible, or do I need an SMA to take advantage of this? 

HWC_JL by Community Member
  • 2319 Views
  • 3 replies
  • 0 Helpful votes

Hello,I would like to to check internal e-mail address validity with ldap check or smtp in a Message Filters and only at Message Filter level.According the documentation, it is not possible. Do you know if Cisco as any plan for a such possibility in ...

plb_ge by Frequent Visitor
  • 2541 Views
  • 7 replies
  • 0 Helpful votes

Hi,with DMARC we can reject mails during SMTP dialog (according to DMARC policies). However, with SPF and DKIM we can only drop/quarantine/bouce, but not reject. Acting on SPF results is only possible in message/content filters (which happen after SM...

Hello Gurus  I am new to cisco email security appliance , Hence looking for expert opinion. Due to COVAD-19, I assume companies are seeing large number of SPAM attack. I would like to know what you expert are searching in order to filter out maliciou...

TheRock by Community Member
  • 1821 Views
  • 0 replies
  • 0 Helpful votes

I need to find all emails containing an attachment (.doc) received by the organization in the last 30 days.I have already tried to run the GUI on the SMA, but a max it returns if 1000 entries and we have more than 1000.Hence is there a backend query ...

hdsouza by Community Member
  • 1661 Views
  • 4 replies
  • 0 Helpful votes
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