SIDN Academy

The new SIDN Academy's first session will focus on e-mail standards. E-mail is one of the world's most popular mediums of communication. Business traffic is particularly heavy. However, a lot of e-mail isn't secure. A recent survey found that key security standards, such as StartTLS, DKIM and DMARC are barely used in the .nl zone. That's a great pity, because they make communication more reliable and secure. Starting in the current six-month reference period, we're therefore aiming to boost adoption by incentivising use of the standards through the Registrar Scorecard.

Practical support

As well as providing a financial incentive for using the standards, we want to promote the sharing of knowledge about secure e-mail. Of course, most registrars will have no difficulty with the automated rollout of the DNS records that the standards rely on. However, applying the standards correctly and ensuring that their use does actually increase security is somewhat more involved. So we'll be running a practical one-day workshop, explaining everything that you need to know. The Dutch-language workshop will take you through the standards in detail, so that you can immediately get to work on your portfolio. It'll be a real hands-on session, delivered by professional Dmarcian trainers.


The SIDN Academy's first workshop is scheduled to run on three dates. You can indicate your preference when registering:

  • Tuesday 7 August (fully booked)

  • Thursday 23 August (fully booked)

  • Wednesday 19 September (fully booked)



Please note that all sessions will be in Dutch.

09.00 - 09.30 Reception with coffee and tea
09.30 - 11.00

Introduction to e-mail standards

  • Problems with the current e-mail ecosystem (real versus not real)
  • Central role of DNS-based security
  • Why use DMARC?
  • DMARC in relation to e-mail basics
  • DMARC implementation in the organisation
11.00 - 11.15 Break
11.00 - 12.30

Detailed consideration of e-mail standards

  • Protecting traffic with StartTLS, DNSSEC, DANE and DMARC
  • Visibility of BIMI and other identifiers
  • DMARC adoption
12.30 - 13.30 Lunch
13.30 - 15.00

Implementing the standards

  • DMARC implementation: the basics of SPF (in the DNS) and DKIM (on the mail server/appliance)
15.00 - 15.30 Break
15.30 - 17.00

Implementing the standards

  • Analysis of real data
17.00 - 18.30 Activity and refreshments
18.30 - 20.00 Dinner

Who is the workshop aimed at?

Our workshop will be pitched at system administrators, support engineers, technical consultants, security specialists and anyone else concerned with e-mail and its security.

What should you bring?

You'll need your own laptop and charger.


In order to make the best possible use of the available time, we'd like all participants to do a couple of things ahead of the workshop:

  1. Set up an account on, selecting 'Europe'. If you have created your account, please report this via

  2. Add a DMARC record to your DNS. If you're unsure about the best settings, drop a line to

Setting up an account and creating a DMARC record before the workshop will mean that, on the day, you can immediately get working on implementation of the standards for your own domains. After the workshop, you'll know enough to independently roll out e-mail security for your customers' .nl domains.


VRIJ in Culemborg is on the Anckerwaerdt Estate, Beusichemsedijk 17, Culemborg, the Netherlands.    IMPORTANT INFORMATION ABOUT FINDING VRIJ: Your navigation system may suggest using the Everdingen motorway exit, but we recommend the Culemborg exit.VRIJ is ten minutes' drive from the A2 motorway and has ample private parking. You can also get to VRIJ using public transport. From Culemborg Station, take a number 46 bus. You'll need to get off at the Hamseweg stop. It's then a kilometre's walk following the road, or you can take a short-cut across the Anckerwaerdt Estate. The estate entrance is 450 metres from the Hamseweg stop. Part of the footpath across the estate is unpaved.

How much does it cost?

Absolutely nothing! In partnership with the RA, the SIDN Academy is being made available entirely free of charge. Two places are available for each .nl registrar. There's no obligation to enrol but, if you do put your name down, we'll be expecting you on the day. If you drop out without telling us, we'll incur costs unnecessarily. We therefore hope you'll appreciate that we have to charge €50 in the event of a last-minute no-show.

Register or cancelling your registration

Registration is closed, the workshops are fully booked.

Once you've registered, we'll plan the training and catering on the assumption that you're coming. You can cancel your registration free of charge until a week before the workshop. To cancel, simply drop a line to

NB.At last minute no show we charge € 50, -.We ask for your understanding.

Any questions?

If you've got a technical question, please contact Sebastiaan Assink by calling +31 611 605 613, or mail to If you want to ask about the practical arrangements, please call Sietske Plantinga on +31 683 983 782 or mail to


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