A website to effect change
We're thrilled to share our brand-new Spamhaus Project website with you! It was high time for an overhaul, but now we have a website that reflects who and what Spamhaus is today. The new site offers a wealth of education, support, and free data to the community covering topics such as IP and domain reputation, malware, DNS Blocklists, threat intelligence, service providers, and more.
Spamhaus Blocklist (SBL) listings are moving
Any abuse desk worker or Trust and Safety team member who has received a Spamhaus Blocklist (SBL) email notification, can view the full details of the listing on www.spamhaus.org. However, change is coming soon. Please read on, otherwise, you may think you've been phished, when the URL in one of these notifications is different and directs you to a different place!
If you query the legacy DNSBLs via DigitalOcean move to Spamhaus Technology's free Data Query Service
If you are currently accessing the free DNS Blocklists (DNSBLs) via the Public Mirrors, and you’re using DigitalOcean infrastructure - you'll need to make some minor changes to your email infrastructure. The changes are easy to implement, but if you fail to do so, you could find that at some point post-February 14th 2024, all or none of your email is blocked!
Part 2 – Effective strategies against inbound malicious email: using your own data
Having looked at best practices for utilizing blocklists in the first part of this series, let’s explore the value of maximizing your own data to protect your network from malicious inbound emails. After all, your email infrastructure contains data that may only occur on your specific network.
Permission pass: what, how and when to use
Discover how to resolve IP and domain blocklisting issues caused by single-opt-in email lists with a Permission Pass strategy. Learn the intricacies of conducting a Permission Pass, ensuring compliance with COI standards and spam regulations.
Mailing Lists -vs- Spam Lists
Explore the nuances between Solicited Bulk Email and Spam, uncovering the importance of Confirmed Opt-In (COI) practices. Understand how COI safeguards against spam accusations and enhances email list performance.
The conundrum that is the modern use of NAT at a carrier grade level
Modern NAT, including Carrier Grade NAT (CGNAT), complicates tracking by hiding multiple devices behind one IP, akin to a circus full of clowns. This anonymity facilitates spamming and malware distribution. ISPs can mitigate this by clarifying CGNAT usage and filtering outbound port 25, reducing support costs and spam.
Are you ready for the email authentication revolution?
Matthew Vernhout, NetCore Cloud's VP, Deliverability (ENSA), explains how new email authentication changes spearheaded by Yahoo and Gmail will impact your email strategy and what you can do to take proactive measures.
WHOIS: identification or correlation?
Recently, WHOIS data was used to uncover a large cluster of domains used for a fake URL-shortener scheme and a massive SMS phishing operation, known as Prolific Puma. Spamhaus Technology's Head of Data Carel Bitter explores why this case is particularly interesting and the role of WHOIS data in identification and correlation.
What is an email sunset policy and why do you need one?
A sunset policy is an essential component of any successful email program. Find out why a sunset policy is essential and what you need to do to effectively implement one.
QNAME Minimization and Spamhaus DNSBLs
On October 4th the Internet Systems Consortium (ISC) issued an article highlighting a problem with Spamhaus’ RBLDNS servers incorrectly answering partial queries that are sent due to QNAME minimization. Our technical team has deployed an initial patch for this issue, and we are in open dialogue with the ISC as...