---
title: Webinar | Spamhaus Know How - Blocklist Basics
description: Join the Spamhaus Know How DNS Blocklist basics webinar, to start at the very beginning of the DNS blocklist journey.
---

[![Spamhaus Tech](https://events.spamhaus.com/hubfs/raw_assets/public/Spamhaus_May2020/images/logo.svg "Spamhaus Tech")](https://www.spamhaus.com/)

# VIDEO | KNOW HOW BLOCKLIST REFRESH

Discover the who, what, where and when of DNS Blocklists

### Everything you need to know about blocklists, but don't like to ask!

Expand your expertise with Spamhaus Know How, our free series aimed at filling in knowledge-gaps and helping you to maximize the benefits from DNS Blocklists (DNSBLs). 

DNS Blocklist Refresh is focused on the fundamentals. If you're new to this area and run your own mail server, or simply would like a DNSBL refresher, this is the video to watch.

### Sign up to our free DNSBLs

Want to trial Spamhaus' IP and content blocklists?  You can sign-up for access to all our IP, domain and hash DNSBLS, for 30 days free of charge.

[Trial the blocklists now](https://www.hubspot.com/)

# Meet the speakers...

![Emanuele photograph](https://events.spamhaus.com/hs-fs/hubfs/Team%20Photos/Skull%20Black%20and%20White%20Square.jpg?width=1000&height=1000&name=Skull%20Black%20and%20White%20Square.jpg "Emanuele photograph")

### Emanuele, Head of Technology

Affectionately known for years as 'Skull' within the industry, Emanuele has always been passionate about large scale internet threat management and email security.

With a background in sysadmin since 2000 (surely he can't be that old?) Skull spent a significant amount of time managing research and development for both system and network infrastructure, in addition to designing spam filtering architectures and methods.  

Nowadays Skull would describe what he does as "hiking / leaning out" (in sailing terms).  We'll leave it to you to work out what he means by that, or you can ask him in the Q&A!

 

![headshot-carel-bitter-bw](https://events.spamhaus.com/hs-fs/hubfs/headshot-carel-bitter-bw.jpg?width=2140&height=2140&name=headshot-carel-bitter-bw.jpg "headshot-carel-bitter-bw")

### Carel Bitter, Head of Data

Carel is part of the very fabric of The Spamhaus Project, having been with us for over a decade. Most of his time is spent investigting how a bad actor's infrastructure operates - and ensures internet users are protected from nefarious activity.

From malware and snowshoe spam to DNS, domains, and everything in between, Carel is always absorbed in a cat and mouse game, tenaciously and tirelessly hunting down malicious entities. With a focus on reputation across all internet resources, Carel enjoys reviewing any (and all) data that helps provide context, and ultimately protection. 

Carel can regularly be found presenting to audiences across the globe, sharing his knowledge and experience with others.

## Related reading

[![Man putting foundation bricks in place for mail server](https://events.spamhaus.com/hubfs/Know%20How%20-%20DNS%20Blocklists/blog%204%20tempV2.jpg "Man putting foundation bricks in place for mail server")](https://www.spamhaus.com/resource-center/top-tips-for-running-your-own-mail-server/)

## [Top tips for running your own mail server](https://www.spamhaus.com/resource-center/top-tips-for-running-your-own-mail-server/)

[![Mail being processed by a company](https://events.spamhaus.com/hubfs/Know%20How%20-%20DNS%20Blocklists/blog%202@2x.jpg "Mail being processed by a company")](https://www.spamhaus.com/resource-center/six-advantages-to-running-your-own-email-server/)

## [Six advantages to running your own mail server](https://www.spamhaus.com/resource-center/six-advantages-to-running-your-own-email-server/)

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