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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
  • 882 Views
  • 2 replies
  • 0 Helpful votes

We upgraded from Async 11.0 to 11.1.2 on our ESA last week. We've recently found that now some of our Mail Policy filters aren't working correctly. I've tracked it down to the fact that 11.1 now enabled the Mail Policy Match Priorities (under Mail Po...

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charlesgp by Level 1
  • 1639 Views
  • 1 replies
  • 0 Helpful votes

Hello   Does It possible to monitor number of incomming connections (topin) to SMA devices using SNMP? As I known , It's possible using https in XML format , but we are finding solutions for SNMP. Does It possible? Thank you

astrilet by Cisco Employee
  • 1352 Views
  • 0 replies
  • 0 Helpful votes

Hi, i am just wondering if there is a way to route based on a special AD attribute.We have Notes and Exchange Servers. At the moment the whole email traffic is sent via the notes system.Both systems have the same mail domain.Now i just want to config...

BigRed by Level 1
  • 7248 Views
  • 14 replies
  • 0 Helpful votes

Hi there,i have a request, to send all mails with malware to a quarantine as original mail. No av check or malware check should be performed while going to quarantine.So my question is, is there a way to disable av scanning or antispam for mails send...

BigRed by Level 1
  • 1320 Views
  • 0 replies
  • 0 Helpful votes

Hello,    I have a problem for create a complexe rule  The goal is of deleting attachments less than 5Kb   I don't find that criteria, i find only an proceess for deleting the superior object (same even using drop-attachments-by-size)  not for deleti...

pdo92 by Level 1
  • 1775 Views
  • 5 replies
  • 0 Helpful votes

Looking for some help please.   I have a customer who is using C170 ESA and recently we had a mail with malicious content that usual is blocked, but got through.   Then I sent the mail myself from a test account with the same content and it was corre...

Hello,   I would like to some enquire about below commands for daily operation. Command: repengstatus Command: sbsstatus   I would like to know as:- 1) How old does the engine need to be in order to determine for the update or verify the process on t...