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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.

 

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Resolved! Ironport Regex

I'm needing regex of some sort for the content filter to quarantine emails with following subject, Completed: [domain name] – "Wire transfer for recipient-name Document Ready for Signature"Completed [domain name/email address] – "Accounting Invoice [...

jtsai8585 by • Level 1
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  • 1 replies
  • 0 Helpful votes

Resolved! CISCO C300V Mail Appliance.

Hi, I've just inherited some security requirements on our C300V mail appliances. I have, pretty much zero experience with CISCO technologies, so please bear with me if i get terminology or technical capabilities wrong. I'd like to separate our emai...

ESA | Error message in mail_logs

Wed May 17 10:36:43 2017 Info: New SMTP ICID 3650597 interface Data 1 (192.168.1.1) address 52.197.70.246 reverse dns host www.tca-autotech.com verified yesWed May 17 10:36:43 2017 Info: ICID 3650597 REJECT SG BLACKLIST match sbrs[-10.0:-3.0] SBRS -1...

John by • Level 1
  • 1222 Views
  • 1 replies
  • 0 Helpful votes
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