We should scan emails using AntiVirus signatures to make sure there are no viruses attached in emails.
Note: A virus signature is the fingerprint of a virus. It is a set of unique data, or bits of code, that allow it to be identified. Antivirus software uses a virus signature to find a virus in a computer file system, allowing to detect, quarantine, and remove the virus.
SenderBase is an email reputation service designed to help email administrators research senders, identify legitimate sources of email, and block spammers. When the Cisco ESA receives messages from known or highly reputable senders, it delivers them directly to the end user without any content scanning. However, when the Cisco ESA receives email messages from unknown or less reputable senders, it performs antispam and antivirus scanning.
We should scan emails using AntiVirus signatures to make sure there are no viruses attached in emails.
Note: A virus signature is the fingerprint of a virus. It is a set of unique data, or bits of code, that allow it to be identified. Antivirus software uses a virus signature to find a virus in a computer file system, allowing to detect, quarantine, and remove the virus.
SenderBase is an email reputation service designed to help email administrators research senders, identify legitimate sources of email, and block spammers. When the Cisco ESA receives messages from known or highly reputable senders, it delivers them directly to the end user without any content scanning. However, when the Cisco ESA receives email messages from unknown or less reputable senders, it performs antispam and antivirus scanning.
Reference:
b_ESA_Admin_Guide_12_0/b_ESA_Admin_Guide_12_0_chapter_0100100.html
-> Therefore Outbreak filters can be used to block emails from bad mail servers.
Web servers and email gateways are generally located in the DMZ so
Note: The recipient access table (RAT), not to be confused with remote-access Trojan (also RAT), is a Cisco ESA term that defines which recipients are accepted by a public listener.
We should scan emails using AntiVirus signatures to make sure there are no viruses attached in emails.
Note: A virus signature is the fingerprint of a virus. It is a set of unique data, or bits of code, that allow it to be identified. Antivirus software uses a virus signature to find a virus in a computer file system, allowing to detect, quarantine, and remove the virus.
SenderBase is an email reputation service designed to help email administrators research senders, identify legitimate sources of email, and block spammers. When the Cisco ESA receives messages from known or highly reputable senders, it delivers them directly to the end user without any content scanning. However, when the Cisco ESA receives email messages from unknown or less reputable senders, it performs antispam and antivirus scanning.
b_ESA_Admin_Guide_12_0/b_ESA_Admin_Guide_12_0_chapter_0100100.html
-> Therefore Outbreak filters can be used to block emails from bad mail servers.
Web servers and email gateways are generally located in the DMZ so
b_ESA_Admin_Guide_12_0/b_ESA_Admin_Guide_12_0_chapter_0100100.html
-> Therefore Outbreak filters can be used to block emails from bad mail servers.
Web servers and email gateways are generally located in the DMZ so
Note: The recipient access table (RAT), not to be confused with remote-access Trojan (also RAT), is a Cisco ESA term that defines which recipients are accepted by a public listener.

A multicontext firewall is a feature that allows a single physical firewall to be divided into multiple virtual firewalls, also known as security contexts. Each context operates as an independent device, with its own security policy, interfaces, and administrators. This feature is useful for service providers, large enterprises, or any network that requires more than one firewall. One of the problems that a multicontext firewall can solve is an overlapping IP addressing plan. This means that different contexts can use the same IP addresses without causing conflicts, as long as they are separated by different interfaces or VLANs. This allows for more efficient use of IP address space and easier management of multiple networks. A multicontext firewall can also support dynamic routing protocols and VPNs within each context, providing more flexibility and functionality12 References := 1: What Are Multi-Context Firewalls? - Franklin Fitch 2: Multiple Context Mode - Cisco

Reference: https://developer.cisco.com/docs/ios-xe/#!streaming-telemetry-quick-start-guide