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...
Email Security
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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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Forum Posts
Hello, I would like to ask what log subscription is supposed to have entries about the publish of SMA to an ESA? Thanks and regards, Konstantinos
Is there a view in the ESA for all incoming emails and outgoing emails. Just need to have a table view of all emails and then search or filter what im looking.
Resolved! About errors when performing an upgrade
Hi everyone, I am using a local update server to test the upgrade.I need to upgrade in three stages.The first stage went fine, but when I tried to perform the second stage upgrade, I got the following message and could not upgrade.Please advise from ...
where is the simple place to block email addresses/domains. Used to be really easy in Barracuda where you have a tab that said block/accept and then just add the address or domain.
HiI have migrated the configuration from a C170 to an ESAv C100v same versions in both 11.0.4-003. Everything is working fine including virus and other updates, but if i try to update to a newer OS version I get the message "No available upgrades."VL...
I'm reviewing a CISCO CES configuration. There is a profanity dictionary, however it doesn't seem to be used or working. How can I determine if any filters or other settings use a particular dictionary?
Hello Is there a way to know a mail that goes to quarantine for which URL it goes for? Are there any logs indicating the exact reason for a quarantined email? Regards, Konstantinos
Hello,basically, I'm wondering can I configure ESA to act on TCP reset and place undeliverable email in queue of some kind for up to 72 hours?In between Exchange and ESA there is a firewall which is not MTA capable, but can scan inline for advanced m...
Working in a C170 ESA. AsyncOS 11.0.3-251. Many incoming emails have a disclaimer text added by the sender's email provider or security service. I need to be able to ignore this text because when we reply to the email, the disclaimer text quarantines...
Hello, I would like to know if there is a capability to know which actions the admin user performed while logged in in the appliance or SMA. Something like accounting Thanks in advance!Konstantinos
Resolved! Report based on failure reason
Hello, I would like to ask if there is a way to produce a report based on a failure inside the message body like Reason: 4.3.0 - Other mail system problem ('451', ['4.7.500 Server busy. Thanks and regards, Konstantinos
What is the difference between InBounds, OutBound and O365 VIPs in Cisco CES ? Thanks
Hello, is there any problem with update server? because when i tried to upgrade SMA the download stuck at 6%.I have tried to download directly via this link http://updates.ironport.com/fetch_manifest.html but failed. it's happen at12-13 Jan 2021 GMT ...
Hi All, I have tried to create custom DLP policy for Malaysian ID, for example, 889922-01-1234 or 881243 01 1234 and the regular expressions that I created as below. Its should be denied and drop when someone sent out an email that content ID. but it...
Resolved! ESA DNS to use Umbrella
Hello, I was asked to configure in ESA the Umbrella DNS. Is there any guide stating the procedure and the ports required to enable the communication? Regards, Konstantinos
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