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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
  • 1515 Views
  • 2 replies
  • 0 Helpful votes

Trying to get LDAP / Active Directory integration so we can use different policies for different AD users and groups.  Lets for example say in Active Directory I have the following structure: OU=Company Employees        OU=Accounting                ...

Hello,I have worked with support on this, and created a combination filter and dictionary to tag the from sender.  Currently we allow messages from our "domain.com" from external senders, reason being many system send messages on behalf of the users....

twarmsbecker by Community Member
  • 1423 Views
  • 2 replies
  • 0 Helpful votes

Hello everyone,I have a Ironport ESA and it worked well.For company reasons, I had to change the IP addresses. The new IP were given to me by my network administrators.From the interface "Network" -> "IP Intefaces" I changed "IP Address" and "hostnam...

Hi Im going to implement Cisco Cloud Email Security but my customer has some doubts 1.- The customer has access to Ironport as administrator?????, He can creates policies????, Log into SSH?????? or need to contact Cisco to do this??? 2.- If the cust...

I have AMP configured to drop malicious attachments, add an x-malware=1 header, and deliver.   I then have a content filter that looks for that header and if it exists, quarantines the message.  The issue I'm having is that some of these messages are...

Based on the documentation it looks like the solution for redundancy is to have one primary and the other standby.  The primary will backup to the standby.  I wanted to make sure that was correct.   The documentation doesn't really explain how we wou...

cale Dunn by Community Member
  • 1038 Views
  • 1 replies
  • 0 Helpful votes
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