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DANE-for-SMTP-how-to.md
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<img align="right" src="images/logo-internetnl-en.svg">
# DANE for SMTP how-to # DANE for SMTP how-to
This how-to is created by the Dutch Internet Standards Platform (the organization behind [Internet.nl](https://internet.nl)) in cooperation with industry experts (hosters and vendors) and is meant to provide practical information and guidance on implementing DANE for SMTP. This how-to is created by the Dutch Internet Standards Platform (the organization behind [Internet.nl](https://internet.nl)) in cooperation with industry experts (hosters and vendors) and is meant to provide practical information and guidance on implementing DANE for SMTP.

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DKIM-how-to.md
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- [Introduction](#introduction) <img align="right" src="images/logo-internetnl-en.svg">
# DKIM how-to
This how-to is created by the Dutch Internet Standards Platform (the organization behind [internet.nl](https://internet.nl)) and is meant to provide practical information and guidance on implementing DKIM.
# Table of contents
- [What is DKIM?](#what-is-dkim-) - [What is DKIM?](#what-is-dkim-)
- [Why use DKIM?](#why-use-dkim-) - [Why use DKIM?](#why-use-dkim-)
- [Tips, tricks and notices for implementation](#tips--tricks-and-notices-for-implementation) - [Tips, tricks and notices for implementation](#tips--tricks-and-notices-for-implementation)
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<small><i><a href='http://ecotrust-canada.github.io/markdown-toc/'>Table of contents generated with markdown-toc</a></i></small> <small><i><a href='http://ecotrust-canada.github.io/markdown-toc/'>Table of contents generated with markdown-toc</a></i></small>
# Introduction
This how-to is created by the Dutch Internet Standards Platform (the organization behind [internet.nl](https://internet.nl)) and is meant to provide practical information and guidance on implementing DKIM.
# What is DKIM? # What is DKIM?
DKIM stands for **D**omain**K**eys **I**dentified **M**ail and is described in [RFC 6376](https://tools.ietf.org/html/rfc6376) with updates in [RFC 8301](https://tools.ietf.org/html/rfc8301) and [RFC 8463](https://tools.ietf.org/html/rfc8463). It is meant to provide the owner of a domain with the means to claim that a message has actually been send by the domain's e-mail server and should therefore be considered legitimate. It works by signing every individual e-mail message with a specific key (private key), so that the receiving party can use a corresponding key (public key) published in the sending domain's DNS record to validate the e-mail authenticity and to check whether the e-mail has not been tampered with. DKIM stands for **D**omain**K**eys **I**dentified **M**ail and is described in [RFC 6376](https://tools.ietf.org/html/rfc6376) with updates in [RFC 8301](https://tools.ietf.org/html/rfc8301) and [RFC 8463](https://tools.ietf.org/html/rfc8463). It is meant to provide the owner of a domain with the means to claim that a message has actually been send by the domain's e-mail server and should therefore be considered legitimate. It works by signing every individual e-mail message with a specific key (private key), so that the receiving party can use a corresponding key (public key) published in the sending domain's DNS record to validate the e-mail authenticity and to check whether the e-mail has not been tampered with.

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DMARC-how-to.md
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<img align="right" src="images/logo-internetnl-en.svg">
# DMARC how-to
This how-to is created by the Dutch Internet Standards Platform (the organization behind [internet.nl](https://internet.nl)) and is meant to provide practical information and guidance on implementing DMARC.
# Table of contents # Table of contents
- [Introduction](#introduction)
- [What is DMARC?](#what-is-dmarc-) - [What is DMARC?](#what-is-dmarc-)
- [Why use DMARC?](#why-use-dmarc-) - [Why use DMARC?](#why-use-dmarc-)
- [Tips, tricks and notices for implementation](#tips--tricks-and-notices-for-implementation) - [Tips, tricks and notices for implementation](#tips--tricks-and-notices-for-implementation)
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<small><i><a href='http://ecotrust-canada.github.io/markdown-toc/'>Table of contents generated with markdown-toc</a></i></small> <small><i><a href='http://ecotrust-canada.github.io/markdown-toc/'>Table of contents generated with markdown-toc</a></i></small>
# Introduction
This how-to is created by the Dutch Internet Standards Platform (the organization behind [internet.nl](https://internet.nl)) and is meant to provide practical information and guidance on implementing DMARC.
# What is DMARC? # What is DMARC?
DMARC is short for **D**omain based **M**essage **A**uthentication, **R**eporting and **C**onformance and is described in [RFC 7489](https://tools.ietf.org/html/rfc7489). With DMARC the owner of a domain can, by means of a DNS record, publish a policy that states how to handle e-mail (deliver, quarantine, reject) which is not properly authenticated using SPF and/or DKIM. Because DMARC depends on the security of DNS, the use of DNSSEC is highly recommended. DMARC is short for **D**omain based **M**essage **A**uthentication, **R**eporting and **C**onformance and is described in [RFC 7489](https://tools.ietf.org/html/rfc7489). With DMARC the owner of a domain can, by means of a DNS record, publish a policy that states how to handle e-mail (deliver, quarantine, reject) which is not properly authenticated using SPF and/or DKIM. Because DMARC depends on the security of DNS, the use of DNSSEC is highly recommended.

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SPF-how-to.md
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<img align="right" src="images/logo-internetnl-en.svg">
# SPF how-to
This how-to is created by the Dutch Internet Standards Platform (the organization behind [internet.nl](https://internet.nl)) and is meant to provide practical information and guidance on implementing SPF.
# Table of contents # Table of contents
- [Introduction](#introduction)
- [What is SPF?](#what-is-spf-) - [What is SPF?](#what-is-spf-)
- [Why use SPF?](#why-use-spf-) - [Why use SPF?](#why-use-spf-)
- [Tips, tricks and notices for implementation](#tips--tricks-and-notices-for-implementation) - [Tips, tricks and notices for implementation](#tips--tricks-and-notices-for-implementation)
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<small><i><a href='http://ecotrust-canada.github.io/markdown-toc/'>Table of contents generated with markdown-toc</a></i></small> <small><i><a href='http://ecotrust-canada.github.io/markdown-toc/'>Table of contents generated with markdown-toc</a></i></small>
# Introduction
This how-to is created by the Dutch Internet Standards Platform (the organization behind [internet.nl](https://internet.nl)) and is meant to provide practical information and guidance on implementing SPF.
# What is SPF? # What is SPF?
SPF is short for "**S**ender **P**olicy **F**ramework" and is described in [RFC 7208](https://tools.ietf.org/html/rfc7208). It offers domain owners that use their domains for sending e-mail, the possibility to use the DNSSEC infrastructure to publish which hosts (mail servers) are authorized to use their domain names in the "MAIL FROM" and "HELO" identities. So basically SPF is a whitelist which lists all servers that are allowed to send e-mail on behalf of a specific domain. The receiving mail server may use the information (a SPF record) published in the DNS zone of a specific mail sending domain. SPF is short for "**S**ender **P**olicy **F**ramework" and is described in [RFC 7208](https://tools.ietf.org/html/rfc7208). It offers domain owners that use their domains for sending e-mail, the possibility to use the DNSSEC infrastructure to publish which hosts (mail servers) are authorized to use their domain names in the "MAIL FROM" and "HELO" identities. So basically SPF is a whitelist which lists all servers that are allowed to send e-mail on behalf of a specific domain. The receiving mail server may use the information (a SPF record) published in the DNS zone of a specific mail sending domain.

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parked-domain-how-to.md
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- [Introduction](#introduction) <img align="right" src="images/logo-internetnl-en.svg">
# Introduction
This how-to is created by the Dutch Internet Standards Platform (the organization behind [internet.nl](https://internet.nl)) and is meant to provide practical information and guidance on explicitly configuring a parked domain not to use e-mail.
# Table of contents
- [What is a parked domain?](#what-is-a-parked-domain-) - [What is a parked domain?](#what-is-a-parked-domain-)
- [Domain without e-mail](#domain-without-e-mail) - [Domain without e-mail](#domain-without-e-mail)
* [Null MX](#null-mx) * [Null MX](#null-mx)
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<small><i><a href='http://ecotrust-canada.github.io/markdown-toc/'>Table of contents generated with markdown-toc</a></i></small> <small><i><a href='http://ecotrust-canada.github.io/markdown-toc/'>Table of contents generated with markdown-toc</a></i></small>
# Introduction
This how-to is created by the Dutch Internet Standards Platform (the organization behind [internet.nl](https://internet.nl)) and is meant to provide practical information and guidance on explicitly configuring a parked domain not to use e-mail.
# What is a parked domain? # What is a parked domain?
[Domain parking](https://en.wikipedia.org/wiki/Domain_parking) is the registration of an Internet domain name without that domain being associated with any services such as e-mail or a website. [Domain parking](https://en.wikipedia.org/wiki/Domain_parking) is the registration of an Internet domain name without that domain being associated with any services such as e-mail or a website.