Heads Up :
The post you are writing will appear in a public forum. Please ensure all content is appropriate for public consumption. Review the employee guidelines for the community here.
Hello,recently there was an issue the DNSSEC settings in our DNS Zone were inactive. It was solved after a few hours. Afterwards we did get reports some (not all) external organizations were unable to send messages to our organization.Apparently some...
Hi,At this moment i'm busy in a test environment to setup an appliance to only use GCM Ciphers and TLS v1.2 for in- and outbound SMTP connections.As a method i configured TLS 1.2. The GCM Ciphers are only available in the HIGH category Ciphers (check...
Does someone know the difference and benefits between Senderbase and Service Logs. From Async 13.5 Service Logs will replace senderbase. According to the shared data per solution different data is offered to talos: Senderbase: machine oriented:https:...
We are in the process of installing a new appliance in a datacenter. The appliance has been licensed and all firewall ports have been opened. We are getting updates from Anti-Spam, Anti-Virus and all other services.At this moment we have an issue upd...
We are in the process of modifying a content filter for domain with a awful/poor reputation. We want to move these messages to the SPAM quarantaine by adding the header: X-IronPort-Quarantine to the message.In our test the messages are moved to the S...
Hello,We are in the process of the same comparison: Cisco vs O365 E5. We have been using our current Cisco ESA environment without to much issue the last 8 years. The main pro is that it is very customizable compared to Office365/Exchange. This gave ...
Hello,At this moment we are migrating our Exchange environment from on-premise to Exchange Online. At this moment we are using Cisco ESA. But our organisation wants to start using Office365 E5 licenses. Mainly because of the lower costs.My question i...
Is the email being delivered to Exchange ? Maybe you can perform a search from that end. On IronPort go to: Mail Policies - incoming Mail Policies - Anti-Spam settings. Is "Add Text to Subject" configured. You can select Prepend and then add the text...
It took a long time. But we have convinced the Firewall team it was an issue with the Firewall. They performed a Firmware update and now everything is working.
Hello Dennis,We checked our logging and we see a lot of TCP Retransmission from the appliance to the ironport.com website: see attachment. One of our network engineers did see that the networkinterface on Data1 and Data 2 we not always online. The in...
