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 workloa...
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
How to restrict personal account access in O365 in tools such as OWA sticky note, One Drive. Access should be restricted business accounts only ,not for personal account. How to implement OMT solution for this. Device: Iron Port Proxy -S380
Hi Mates, I Know that Cisco WSA work with collaboration with Digital Guardian for DLP solution by providing its own DLP Hardware and WSA, and still work same now days even. Confusion come here, With Cisco Cloud Email Security Bundle we get DLP includ...
I have a client with Windows 10 Professional using MS Outlook 2013 with the plug-in version 7.6.2.13. Every time that the user exits Outlook, the plug-in goes inactive once you open Outlook again. Any thoughts?
I want to create a white list by subject filter.Our organization sends out messages to members in bulk on certain days. Replies come in with the same title (Re: <the same subject as 10,000 people received). We found that many are dropped as SPAM as o...
Hi Guys Kindly , Find Attachment Getting disconnected when try to login to esa version 13.0 with the new look , aka next-generation login thanks
How do you find the actual SRBS score for an IP? I know you can get a good/neutral/bad from the SB website but that doesn't help when trying to setup your sender groups.Thanks!-S
Hi, we are getting the following error messages: The certificate used by the appliance to communicate with the SDR service was invalid or expired. Make sure that the appliance is able to fetch a valid certificate from the updater server. Anyone knows...
Hi, What will happen to the new messages to the centralized quarantine mailbox if SMA is not reachable for a period of time?
Resolved! Multiple hosts show as down, TLS?
I am having a problem with multiple hosts being marked as down, with more coming approximately once a week.It is very annoying for my users and reflects badly upon me, as an admin and advocate for us needing this product. What will happen is:1. Sent ...
We just upgraded our Cisco Ironport C170 to AsyncOS 13.0. We have an inhouse Exchange 2010 server. Now outbound emails that are in HTML format have a winmail.dat attachment. This attachment causes some email platforms (like Yahoo) to treat the email...
Hi,according to the documentation, when you set SPF conformance level to SPF only, no PRA identity verification takes place (as that is part of the outdated SIDF). At the same time, the documentation also mentions this:You can only use the spf-status...
Resolved! No System administration -> Alerting
I wish to setup email notifications for my email security, however I do not have the option System Administation -> Alerting in either my SMA or ESA Neither do I have package capture in support! Why?
Resolved! DMARC Non compliant
Dear all could you please tell me what is the meaning of this(please see attachment)? I got DMARC report and i analyzed it using https://easydmarc.com/ . Is there something wrong?
Dear All. Please help us to resolve email issue with our domain zclchemicals.com. some of our customer domain emails get blocked when we send from our domain. we have checked error from both end but no issue found. all the records found OK. please fi...
The customer reports me the following alarm:“An update Failure notification is sent when a service fails to update properly. This notification contains the opaque type for the update Service Name of the update service that has failed.” information be...
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