Brand: Cisco | Category: Network Security
SKU: CSC-ESA-C170-K9 | Part #: ESA-C170-K9 | MPN: ESA-C170-K9
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The Cisco ESA-C170-K9 Email Security Appliance (ESA) is a compact, high-throughput solution designed to protect enterprise email infrastructure from advanced threats, spam, and data loss. This 1U rack-mounted appliance delivers comprehensive email security by combining multiple threat detection and prevention mechanisms into a single, manageable platform that handles up to 100,000 messages per day. Network engineers and IT procurement teams responsible for email gateway security will find the ESA-C170-K9 a robust choice for mid-to-large deployments requiring integrated anti-spam, anti-virus, and data loss prevention capabilities.
Built on Cisco AsyncOS for Email, the ESA-C170-K9 integrates industry-leading threat intelligence and scanning engines to block malware, phishing, and policy violations before they reach end users. The appliance features dual Gigabit Ethernet ports for network traffic, a dedicated 10/100 Ethernet management port, and 4 GB of RAM paired with a dual-core Intel processor to ensure responsive performance. With 2 x 250 GB SATA hard disk drives configured in RAID-1, the system provides reliable data protection and storage for email logs and quarantine. The ESA-C170-K9 is powered by a single fixed AC power supply supporting 100–240 V AC, 50/60 Hz operation, making it compatible with global electrical standards. Administration is streamlined through the web GUI (HTTPS), CLI (SSH), and SNMP v1/v2c/v3 support, enabling flexible integration into existing network management workflows. The Cisco Anti-Spam engine, powered by SenderBase reputation filtering, combined with Sophos and McAfee anti-virus scanning engines (license-dependent) and Cisco Talos real-time threat intelligence updates, creates multiple layers of defense. The appliance also supports Cisco Registered Envelope Service (CRES) for outbound email encryption and includes integrated Data Loss Prevention with RSA Email DLP policies to enforce organizational data governance standards.
For detailed specifications, deployment guidance, or to request a quotation for the ESA-C170-K9, please
| Brand | Cisco |
| Category | Network Security |
| SKU | CSC-ESA-C170-K9 |
| Part Number | ESA-C170-K9 |
| Condition | New |
| Manufacturer Part Number | ESA-C170-K9 |
| Product Series | Cisco Email Security Appliance C170 |
| Form Factor | 1U Rack-Mounted Appliance |
| Operating System | Cisco AsyncOS for Email |
| Recommended Mail Volume | Up to 100,000 messages per day |
| Network Interfaces | 2 x Gigabit Ethernet (copper, RJ-45) |
| Management Interface | 1 x Dedicated 10/100 Ethernet management port |
| Storage | 2 x 250 GB SATA hard disk drives (RAID-1) |
| RAM | 4 GB |
| CPU | Dual-core Intel processor |
| Rack Units | 1U |
| Power Supply | Single fixed AC power supply |
| Input Voltage | 100–240 V AC, 50/60 Hz |
| Anti-Spam Engine | Cisco Anti-Spam (IronPort Anti-Spam) with SenderBase reputation filtering |
| Anti-Virus Engines | Sophos and McAfee anti-virus scanning engines (license-dependent) |
| Threat Intelligence | Cisco Talos real-time threat intelligence updates |
| Encryption Support | Cisco Registered Envelope Service (CRES) for outbound email encryption |
| DLP | Integrated Data Loss Prevention with RSA Email DLP policies |
| Management Access | Web GUI (HTTPS), CLI (SSH), SNMP v1/v2c/v3 |
| Centralized Management | Compatible with Cisco Security Management Appliance (SMA) |
| Regulatory Standards | Supports deployments aligned with HIPAA, PCI-DSS, and SOX email control requirements |
The Cisco ESA-C170-K9 Cisco Email Security Appliance (ESA) is enterprise networking hardware for data-center, campus, and branch deployments. Common roles include core/distribution switching, server uplinks, top-of-rack fabric, and edge connectivity in mixed Cisco/Juniper/Arista environments.
The Cisco ESA-C170-K9 Cisco Email Security Appliance (ESA) interoperates with standard switching protocols (LACP, MLAG/VPC, 802.1Q, OSPF/BGP). For specific cross-vendor scenarios — Cisco-to-Arista MLAG peering, fabric integration with Cumulus/SONiC, or migration from legacy Catalyst — our network engineers map a compatibility plan as part of the RFQ.