How long is a workshop session?

Typically 60–90 minutes including Q&A. A tighter 45-minute version or a half-day deep-dive is available on request.

Can you run the workshop remotely?

Yes, remote works anywhere. On-site sessions cover the Netherlands, and further afield for travel cost.

Email security, DNS & networking workshops for teams

Q: Can you tailor the session to our stack?

Always. I review your domains and setup beforehand and use real examples from your environment so it is immediately actionable.

Q: Do you cover the new DMARC compliance rules from Google, Yahoo and Microsoft?

Yes. The email security session is built around becoming DMARC compliant and keeping legitimate mail out of spam.

Q: What does a workshop cost?

Sessions start at €1,000 excluding VAT. Customisation, on-site travel and recordings are quoted on top, and multi-session bundles are cheaper per session.

I run real networks for a living — carrier-grade VoIP and IP infrastructure by day, my own autonomous system (AS202585) for fun — and I love explaining how this stuff actually works. So I run paid lunch-&-learns and workshops for engineering, ops and IT teams: 60–90 minutes, practical, no vendor fluff, tailored to your stack.

These aren’t recycled webinars. Every session comes from production experience and the same material I present at conferences and hacker camps like WHY2025, HackerHotel and NLNOG. I’m an internet.nl-accredited hoster and active in the NLNOG and international NOG communities — so your team learns the standards from someone who’s measured against them.

Book a session Pick a topic below, then grab a slot to talk it through → or email nick@bouwhuis.net.

The flagship: email security & deliverability (SPF, DKIM, DMARC)

Why do legitimate emails land in spam? Why did Google, Yahoo and Microsoft suddenly start rejecting mail in 2024? And is your domain actually protected against spoofing? This is the session companies need most — and the one I’m built to teach.

Your team will walk away understanding:

How SPF, DKIM and DMARC really work (and the misconfigurations that quietly break them)
The 2024+ DMARC enforcement rules from Google/Yahoo/Microsoft — and how to become compliant
Modern standards most teams miss: MTA-STS, TLS-RPT, BIMI, DANE and DNSSEC
How to read a DMARC report and actually fix what it tells you

Best for: IT, security, marketing-ops and platform teams. No deep networking background needed.

This is also the fastest way to find out whether your own email setup is solid — and if you want, I’ll follow up with a hands-on audit.

More sessions

How the internet actually works — BGP, routing & peering

What happens when you type a URL — for real, down to the BGP routes and internet exchanges. Demystifies the network layer your services depend on. Great for SaaS and platform teams who’ve never had it explained by someone who runs an actual network. (Based on my “how to become your own ISP” talk.)

DNS deep-dive — the infra everyone ignores until it breaks

DNS resolution, DNSSEC, catalog zones, TTL traps, and the outages that start with “it’s always DNS”. The mental model your ops team needs before the 3 a.m. page.

How we reverse-engineered a real app — security awareness

A hands-on, story-driven look at pulling apart a production mobile app — what it reveals, and what it means for your security posture. A genuinely fun, eye-opening session for any team.

Custom topics

Linux at scale, self-hosting & Kubernetes, mail infrastructure, monitoring — if it touches the internet’s plumbing, I can probably build a session around it. Just ask.

Format & pricing

Length: 60–90 minutes, including live Q&A
Where: on-site in the Netherlands, or remote anywhere
Tailored: I adapt examples to your domains, stack and questions beforehand
Recording: optional, so the whole team can rewatch

From €1,000 per session (excl. VAT). Tailoring to your environment, on-site travel, or a recording add-on are quoted on top. Multi-session bundles are cheaper per session.

Why book me

internet.nl Hall of Fame accredited hoster — I’m held to the standards I teach
Operate my own autonomous system (AS202585) with BGP peering at Dutch internet exchanges
Active in the NLNOG and international NOG communities; speaker at WHY2025, HackerHotel, NLNOG Day and NOG.fi
NOC engineer keeping carrier-scale SIP and IP networks alive — this is my day job, not a side hobby

More about me on the about page.

Frequently asked questions

How long is a session? Typically 60–90 minutes including Q&A. I can do a tighter 45-minute version or a half-day deep-dive on request.

Can you run it remotely? Yes — remote works fine anywhere. On-site I cover the Netherlands (and beyond for travel cost).

Can you tailor it to our stack? Always. I review your domains/setup beforehand and use real examples from your environment, so it’s immediately actionable.

Do you cover the new DMARC compliance rules from Google, Yahoo and Microsoft? Yes — the email security session is built around getting you compliant and keeping legitimate mail out of spam.

What does it cost? Sessions start at €1,000 (excl. VAT). Customisation, on-site travel and recordings are quoted on top; bundles are cheaper per session.

Ready when you are Book a 30-minute intro call → and tell me which topic fits your team. No pressure, no slides.