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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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Migrate from Secure Email Virtual C100V to Avoid McAfee-Related Issues

  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
  • 880 Views
  • 2 replies
  • 0 Helpful votes

Resolved! Applying SSL certs

I just installed a new SSL cert on my ESA and applied it to the IP interface for web based management and web based quarantine access. Can I use the same cert for the other functions on the ESA (delivery, receiving, LDAP, TLS)? Or do I have to have a...

Resolved! Missing setipmm command under listenerconfig

Team,I have been trying to test the mail merge feature on test environment and somehow I can not find a way to execute setipmm command on CLI. As per the user guide 8-5-6, Use the setipmm subcommand of listerconfig to enable the IPMM on the listener....

sjhamb by • Cisco Employee
  • 1065 Views
  • 1 replies
  • 0 Helpful votes

vaild recepit without ldap

Hi all,We are in progress to replace our MTA (qmail) with ironport c380.In qmail for receipt validation we use vaild rcpt file, if the reception available in that valid rcpt file the qmail accept the mail. If not then the qmail will reject the mail a...

Email Security

HiMy customer has C 360 and everything is OK, but he is going to migrate to gmail`s cloud, He is asking its possible to filter with his C 360 the mails of gmail???if this is possible, how is the configuration?? or If this its not possible, what do yo...

Twilight of the C160

Those with C160s are hopefully aware of the end-of-life statement which has been mentioned previously on this forum.Will there be any more releases of Asyncos 8 for those who are unable to run version 9, or is it realistically just hotfixes for any p...

exMSW4319 by • Level 3
  • 958 Views
  • 4 replies
  • 0 Helpful votes

DLP test data

Is there any available test data to use for DLP testing on the ESAs in regards to SOX? I have test data for Personally Identifiable Information (PII) but nothing for SOX.

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