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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
  • 1529 Views
  • 2 replies
  • 0 Helpful votes

Hello,We have some spam messages coming in, and when we researching them through Message Tracking, I have noticed there is a line about adding a recipient.Message XXXXXXX on incoming connection (ICID XXXXXX) added recipient (user@user.com).The email ...

joshuaer by Frequent Visitor
  • 672 Views
  • 1 replies
  • 0 Helpful votes

Hello All,Need to configure an DLP Policies in which when users share their government id details Like Pan card/Aadhar Card that details should not go outside of organisation. Below im attaching an sample copy of Pan card and Aadhar card    

sample pan-card.jpg 29a91b16-e999-4bae-9367-c4fdf4ccd2d9.png
sv7 by Level 5
  • 1431 Views
  • 4 replies
  • 0 Helpful votes

Hi Community,Based on the configuration below, i'ld expect this behavior:Sending server tries to deliver e-mail to john.smith@dzhyp.deReceiving server bounces e-mail (e.g. due to wrong recipient) and gives back a bounce-mail with sender e-mail postma...

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aossigno by Community Member
  • 754 Views
  • 0 replies
  • 0 Helpful votes

Hello,Apologies if this post is in the wrong community.I'm having trouble with my legacy Spamcop email account.  I believe that Cisco now owns the Spamcop servers.  But I cannot find a point of contact for my issue.I think that my old Spamcop (cesmai...

SimonHS by Community Member
  • 650 Views
  • 1 replies
  • 0 Helpful votes

Hi, my HDD on C170 is degraded, i already contacted Cisco on this since it is still under warranty they replaced it. as er checking on Cisco's site i need to shutdown the ESA, but i think it is hot swappable so i assume i can just pull the HDD. i nee...

If we have an Action applied on Message based on SDR verdict defined in Global Settings, do we still need a Content or Message filter for further action? Currently set to Reject: Awful in Sender Domain Reputation Overview.Thanks.

KevinNg59926 by Frequent Visitor
  • 1381 Views
  • 1 replies
  • 0 Helpful votes

Dear Team, I've to renew ESA-AMP-LIC for a customer that end active contract the 24 nov 2023 but ESA Advanced Malware Protection (w/t 200 file uploads/day) It's term on 24 Jan 2024. I have a questions: What products or sku must insert on CCW-R for re...

Hi All,Currently SMTP port 25 is configure on our IronPort for smtp relay authentication for mail communication, but now want to configure with SMTPS port 587.Can anyone share any document related to such changes also what will be the users impact fo...

sv7 by Level 5
  • 4998 Views
  • 5 replies
  • 0 Helpful votes