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...
Forum Posts
We have the same problem and have opened a case. The support employee gave us a solution to the problem. You have to create two destination controls for the quarantine delivery domains "the.cpq.host" and "the.euq.queue" without TLS. The emails will t...
Looks like AsyncOS 16.0.4 build 016 was released - which should address CVE-2025-20393 ? Skimming the release notes, I don't see "CVE-2025-20393" mentioned, nor CSCws52505, nor CSCws36549 in the linked "issues resolved links" but I'm assuming this r...
Hello,Does anyone know how can I find out if the ESAs I'm about to upgrade have encryption enabled or not, related to the vault recovery process?The documentation seems vague and only mentioning encryption as a whole. Is it FIPS encryption? Is it app...
Good afternoon. Cisco published a severity 10 CVE today for ESA and SMA. This only applies if the Spam Quarantine is exposed to the internet. https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sma-attack-N9bf4 Ba...
I am looking for instructions to confirm my level of vulnerability to CVE-2025-20393. Online they keep telling me to go to Network>IP Interfaces. However, I don't see IP Interfaces under Network on either my ESA nor SMA. I know we are using a spam...
Which version is affected by this zero day vulnerability with CVE‑2025‑20393
Hi @ all, I am a bit confused, as "https://bst.cloudapps.cisco.com/bugsearch/bug/CSCws36549" ( Last Modified Jan 05, 2026) states following Known Affected Releases:16.0.1-01016.0.0-19515.5.1-02415.0.0-012 , while "https://sec.cloudapps.cisco.com/sec...
Hello Cisco Support Team,I am currently performing security tests on Microsoft Office 365 protections and would like to ensure that my Cisco Email Security configuration is correct for this purpose.I have created a specific bypass policy in Cisco Ema...
Hi All, Observing spam quarantine disable on gateway, can anyone help me out.
Hello, I already assigned lower specification for virtual cisco SMA on Microsoft hypervisor. i need to assign higher resources for the SMA. what is the best practice steps to this.
Hello all, Currently building replacement fresh ironports in response to CVE-2025-20393 The new VM I've deployed - phoebe-16-0-1-017-C300V - is EXTREMELY slow on boot. This is the first 2h the thing has been online and I can't even use the GUI becau...
Issue Description:When users attempt to open the securedoc.html file using the default Cisco Secure Email Encryption link, the secure portal fails to load and displays a “System Unavailable” error. The issue is consistent across browsers, devices, ne...
Dear Cisco Secure Email Threat Defense Team,We are facing an issue where a SharePoint folder sharing email is being blocked and marked as a scam due to a retrospective verdict.Details:Message ID: <Share-3d3ce3a1-a014-6000-40fe-b8bee2adf36e,3d3ce3a1-a...
Hey, i have a cloud deployed c100v esa that is in production with 1 listener.is there a relevant guide about how can i change the config to multiple listeners without configuring everything from scratch?
Hi all,got a problem with DKIM-Signature-Validation in our ESA (Cisco C695 with AsyncOS 15.5.3 build 024).Signature validation fails, if domain in DKIM-Header's d-tag is uppercase. For example, an email with these HeadersFrom: XXXXXX@GMX.DEDKIM-Signa...
