With a view to helping reduce inbound spoofed mail I recently enabled reverse PTR & forward 'A' checking against our 'suspectlist' sender group which behaved fine however having then also created an additional sender group 'Unverified' along with a new more strict throttle policy 'throttlemore' began to see issues with test emails not coming through when enabling the 'check for PTR record not existing'. When checking inbound message headers each hop inbound looks fine with dns/ip entries as expected. Has anyone experience a similar issue and was there a straight forward resolution ?
Many thanks for this, I should also add that we are attempting to target those senders also pretending to be from a domain they are sending from hence following the steps in the ESA_9-7 User guide to implement sender verfication'
Chapter 7 Defining Which Hosts Are Allowed to Connect Using the Host Access Table (HAT)
This is to address those customers coming to ISE from ACS or new to ISE that need a password change portal (UCP)
What are the licensing requirements for this solution?
My Devices - For using the password change with My Devices you need plus licenses as ...
In this paper we will document the configuration and operation of an integrated solution that includes identity management, firewall, cloud-based management, and cloud-based logging.
We will use the following Cisco products:
These days everything is in the cloud. We all know that Cisco Firepower Threat Defense (FTD) is a unified software image, which includes the Cisco ASA features and FirePOWER Services. Using Cisco Defense Orchestrator (CDO), you can manage physical or virt...
Cisco Defense Orchestrator (CDO) is a cloud-based, multi-device manager that provides a simple, consistent, and highly secure way of managing security policies on all your ASA devices. CDO helps you optimize your ASA environment by identifying problems wi...