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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
  • 876 Views
  • 2 replies
  • 0 Helpful votes

Living in sunny yet bandwidth starved SA, we do all our updates from a local machine (typically my laptop), sometimes from customer web servers located on the same network as the IronPorts.I noticed while jumping customers from 4.7.1 to 5.1.0 from a ...

Guys , we have two ironports , one mx 10 one mx20 , both are enable to quarantine spam on the box for end user to check , however now end users need to check on each system individually , what can I do to diverts all the spams from last mx to higher ...

There is nice XML Status monitoring Perl script on support site under 'Appliance Documentation -> Tools' to monitor some system parameters.Have anyone created/modified the Perl script to monitor http://servername/xml/tophosts to get alerted when the ...

Rayman_Jr by Level 1
  • 1936 Views
  • 2 replies
  • 0 Helpful votes

I am at a crossroads. I am using LDAPAccept and need to allow an email account that no longer exists redirect to a new email address for the parent company.Example:jane@domaina.com needs all email redirected to jane.doh@alternatedomain.com. Domaina.c...

Hi,I've a little problem with ldap routing. I need to route some outgoing mails to alternate mailhosts. The hostnames are stored in ldap, but the problem is, that I need the sender address ({f}) as lookup key, which is not allowed in routing query. A...

During last weeks we have noticed steady increase of south American SPAM which is not caught by IPAS. Some rare messages are ranked as 'suspect spam' but mostly spam messages advertising services or goods from e.g. Chile or Peru and other SA countrie...

Rayman_Jr by Level 1
  • 2011 Views
  • 3 replies
  • 0 Helpful votes

Hello:I've seen that in mail policies you can configure the threshold for spam positive and suspected spam between 1 and 100.But in CASE and antispam logs the scores for the messages usually ranks below 30 and even could have some negative values.So ...

Hi,In release notes of 5.1.0 version we see: " 3. Enhancement: IronPort Anti-Spam Filtering -- Regional Rule sets"Where we can find more information about Regional Scanning ?If anyone already tried to set Regional Scanning to "On" ?Thanks, Igor

Here we go folks, this is the first official IronPort Nation contributed tool:Quick Start Wizard---This tool will allow a quick and simple configuration of a C-Series appliance. It is focused on providing a basic yet thorough configuration which can...