Email Security

cancel
Showing results for 
Search instead for 
Did you mean: 
cancel

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.

 

Forum Posts

  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
  • 1515 Views
  • 2 replies
  • 0 Helpful votes

Guys how the best to do these :For example : abc@abc.com user should be able to send out 10 MB size email through Ironport and xyz@abc.com user should only be able to send 3 MB and if he tries to send 10 Mb he should get a bounce back.We use MS Excha...

Hello:What do you sugest to do if my IP address is blacklist in SORBS?They ask for paying a 50$ fine and they refuse to understand I'm using Ironport and low amount of spam can be sent from my servers.Thank you

Hi,Configuring C100 at customer place with ver.5.1.Mails are get through IronPort but start getting SPAM.We found SenderBase service is showing 'never contacted' while same time all other services are showing up-to-dated and Full Internet is provided...

Hi all, I'm new to Ironport and have this problem of some of my company's employees are getting bounce backs with messages from Ironport as follows (after doing some grepping):Sat May 5 11:57:44 2007 Info: Delivery start DCID 23663208 MID 19225280 to...

Living in sunny yet bandwidth starved SA, we do all our updates from a local machine (typically my laptop), sometimes from customer web servers located on the same network as the IronPorts.I noticed while jumping customers from 4.7.1 to 5.1.0 from a ...

Guys , we have two ironports , one mx 10 one mx20 , both are enable to quarantine spam on the box for end user to check , however now end users need to check on each system individually , what can I do to diverts all the spams from last mx to higher ...

Unanswered Topics