ALERT

[LAST CHANCE] Data Layer: Modern Business, Defined

Real-Time Blackhole List (RBL)

Definition - What does Real-Time Blackhole List (RBL) mean?

Real-time blackhole list (RBL) is a dynamic list of IP address owners that are active spammers or spam sources. The RBL may include Internet service providers (ISP) with customers that are known spammers or ISP servers that are hijacked for spamming purposes.

RBL is also known as a DNS Black List (DNSBL).

Techopedia explains Real-Time Blackhole List (RBL)

The majority of spam is the result of online advertisements and unsolicited bulk email (UBE). When spam is delivered, the forwarding IP address is added to the RBL.

The RBL prevents system abuse by halting spam. However, the blacklisting process must be handled carefully. It cannot prohibit appropriate or authentic source connections or open-source networking. If an ISP subscribes to the RBL, the ISP may determine which IP addresses should be blocked and added to the RBL. If an IP address matches an IP address listed on the RBL, the connection is automatically dropped.

The RBL was first implemented by the Mail Abuse Prevention System (MAPS), which was acquired by Trend Micro in 2005. Trend Micro adheres to strict guidelines and policies in its continuous effort to nominate and remove spam IP addresses from its blackhole data listings.

Techopedia Deals

Connect with us

Techopedia on Linkedin
Techopedia on Linkedin
Tweat cdn.techopedia.com
"Techopedia" on Twitter


'@Techopedia'
Sign up for Techopedia's Free Newsletter!

Email Newsletter

Join thousands of others with our weekly newsletter

Resources
The 4th Era of IT Infrastructure: Superconverged Systems
The 4th Era of IT Infrastructure: Superconverged Systems:
Learn the benefits and limitations of the 3 generations of IT infrastructure – siloed, converged and hyperconverged – and discover how the 4th...
Approaches and Benefits of Network Virtualization
Approaches and Benefits of Network Virtualization:
Businesses today aspire to achieve a software-defined datacenter (SDDC) to enhance business agility and reduce operational complexity. However, the...
Free E-Book: Public Cloud Guide
Free E-Book: Public Cloud Guide:
This white paper is for leaders of Operations, Engineering, or Infrastructure teams who are creating or executing an IT roadmap.
Free Tool: Virtual Health Monitor
Free Tool: Virtual Health Monitor:
Virtual Health Monitor is a free virtualization monitoring and reporting tool for VMware, Hyper-V, RHEV, and XenServer environments.
Free 30 Day Trial – Turbonomic
Free 30 Day Trial – Turbonomic:
Turbonomic delivers an autonomic platform where virtual and cloud environments self-manage in real-time to assure application performance.