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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
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I'm running a C10 with ASYNCOS 5.2. I just reset it to factory specs and started configuring the device. When I got through the network config anc clicked the commit changes it hung. I've had the device powercycled and I still can't reconnect to i...

I'm supporting two environments (Domino & Exchange) which are currently able to communicate over the Exchange-Notes Connector. There is now requirement to have a support for same email domain (@company.com) in both environments. Now I'm searching the...

Rayman_Jr by Level 1
  • 1853 Views
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Hi,we had a hardware failure on the system drive of our mail flow central server. (Yes we had a raid, but lost the whole array)Now MFC is up and running on the new system and we still have the old drive with the data, but the question is, how do I ge...

Dear All i am a new user for ironport, would like to check with you all how do i set bypass a few domain from reputation filtering. There are a few client facing a problem sending mail to us was block my reputation filtering. the problem is se...

Hello everybody:Is there any way to get the list of the messages that are in que deliver queue for a domain?With hoststatus I can know the number of active recipients, but it would be useful sometimes to get the MIDs of the messages to process them i...

I'm seeing a lot of this lately and they're all sent from Exim 4.6x on FreeBSDAnyone else seeing this? I don't see a known vulnerability in Exim posted anywhere.<html><body>What are you thinking...if pat sees this your divorced dude. :-{) see for you...

I would like to block yahoogroups mailinglist for certain users, and allowed for others.Here's what I do using message filteryahoogroups_test_filter2: if (mail-from == '@returns.groups.yahoo.com') AND not(RCPT-TO-DICTIONARY-MATCH ('AllowedYahoogro...

According to the manual, Ironport has a problem resolving some variations of Lotus Notes email addresses. It seems if the email address isn't specifically listed in the Name and Address Book, then the LDAP query will fail.Is there anyway to workarou...