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:
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.
I want to enable SMTP Relay inside my network, ESA is on DMZ and Servers who is going to Relay inside my Server Farm what will the best practiceDeployment Configuration. thanks.
Looking at the reports on Ironport, I see that a certain IP was stopped via the reputation filter. Is there anyway in the log to see why it was blocked? Would it be under the bounce logs or the mail_logs?
Hi, we recently implemented an IronPort web filter into our environment and while the granularity of this product is great we have noticed something new has been happening. On the end users machines, very speratically, they have been going to web pa...
Hello, I have one Exchange Edge that communicate with Exchange servers, each exchange Server is associated to an ESA, what I need is that communication between he exchange Edge and all the exchange servers would be via one virtuelle interface, Can cl...
hi Cisco Team, we still have an ironport c360 and s360 on our environment, the question is if there's a bug on the product, will it still be supported? because i don't see any bugs and fixes on it, only for 370's machine only. hoping for y...
We are hoping that there would be a feature or way to configure an Ironport ESA to dump clickable links on inbound emails? This could cut down on potential malware intrusion from people clicking on a link that displays one thing but takes you to ano...
I recently took administration of the ESAs at my company. They do not use TLS on either inbound or outbound email. I am curious about the repercussions if I were to change the inbound and outbound settings from "Off" to "Preferred"?
Hi Folks,i just set up a new ESA C380 configuration cluster.At first glance, all is working fine.After a while i saw in the message tracker a large volume of incoming mailwho has an sbrs score of "not enabled".I checked the senderbase.org and noticed...
I am unable to recevie emails from the domain vigarza.com, and the sender receives this message: 554 Your access to this mail system has been rejected due to the sending MTA's poor reputation. If you believe that this failure is in error, please cont...
Hi,I have an error every time I try to upgrade the M1070 Iron port management box:Error: Error fetching manifest: DNS lookup failedCurrent Version===============Model: M1070Version: 7.9.0-107Build Date: 2012-03-27Install Date: 2012-06-11 16:19:46Seri...
Ok, we want to prefer TLS inbound email but when this is turned on one of our vendors emails never make it in. So we created in HAT overview a NO-TLS sender group with their domain name in it and even an ip address. Now when I send email from gmail...
Hi, I have a Cisco M1060 Management Appliance, and recently started having the following issues; Unable to log in with any user account apart from the Default "admin" account, if attempting to log in with any other account the following screen is sh...
Hi all,we are facing a curious situation on our C170. We have configured 3 different mail policies to perform some checks (executable file stripping, quarantine of unwanted vendor messages, dropping messages of some known local spammers) and have ass...
