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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
  • 737 Views
  • 2 replies
  • 0 Helpful votes

Add more outgoing IP's to C360

I have 3 different Mail-server setups which all relays through my Ironport C360.I have added the 3 different IP's in the "IP Interfaces" & "Listeners".Each Mail-server setup connects to their own IP and it appears that all is working fine.However whe...

Resolved! Policy quarantine questions

I'd like to perform lawful intercept on outgoing mails.But the requirement is not using keyword, rather, it is based on sending user email addresses.I can do the following, but I will need to update and keep in sync the dictionary.MonitorUserFilter: ...

mychrislo by • Level 1
  • 7487 Views
  • 10 replies
  • 0 Helpful votes

Senderbase Network Server down?

On my two IronPort C660s I'm getting Senderbase Network Server down on Security Services > SenderbaseTrue?I think a lot of e-mail is getting rejected because we have if SBRS score is unavailable the e-mail sender is throttled quite a bit...

Link in body

Is there a way to block an incoming message that contains only a link in the body of the message?We have been receiving a lot of messages from clients where their computer or email account (primarily AOL) have been hacked and they are sending message...

jheadley by • Level 1
  • 2738 Views
  • 3 replies
  • 0 Helpful votes

Ironport x1050 bios

I have x1050 with old bios 1.2.1 search new bios not found. On dell site download 2.7.0 bios for pe2950, but I can flash it only with /forcetype key. After reboot LCD panel display dell 2950. I want original oem bios ironport can you help me? Sorry f...

C160 couldn't open after firmware upgrade

Hi,We have a problem with our ironport C160 product. When we power on the device, it is starting its services and replies pings you can see from (1). After that, it doesn’t ping no more and web page couldn’t open. For testing this issue, I connected ...

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