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@ -1,11 +1,11 @@
- [Introduction](#introduction) - [Introduction](#introduction)
- [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)
+ [DMARC](#dmarc) * [DMARC](#dmarc)
+ [DKIM](#dkim) * [DKIM](#dkim)
+ [SPF](#spf) * [SPF](#spf)
* [Domain without a website](#domain-without-a-website) - [Domain without a website](#domain-without-a-website)
<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>
@ -15,30 +15,32 @@ This how-to is created by the Dutch Internet Standards Platform (the organizatio
# 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.
## Domain without e-mail # Domain without e-mail
If a domain is not using e-mail it is recommended to use the following settings. If a domain is not using e-mail it is recommended to use the following settings.
### Null MX ## Null MX
Explicitly configure an 'empty' MX record according to [RFC7505 ](https://tools.ietf.org/html/rfc7505). Explicitly configure an 'empty' MX record according to [RFC7505 ](https://tools.ietf.org/html/rfc7505).
`example.nl IN MX 0 .` `example.nl IN MX 0 .`
### DMARC ## DMARC
Set DMARC policy to reject mails, but allow reporting to take place. This helps detecting activity related to your domain. Set DMARC policy to reject mails, but allow reporting to take place. This helps detecting activity related to your domain.
`_dmarc IN TXT "v=DMARC1; p=reject; rua=mailto:rua@example.nl; ruf=mailto:ruf@example.nl` `_dmarc IN TXT "v=DMARC1; p=reject; rua=mailto:rua@example.nl; ruf=mailto:ruf@example.nl`
### DKIM ## DKIM
When used with a wildcard selector, setting an empty public key indicates that all previously used keys are revoked and must be considered unreliable. The owner of a domain can also use this to explicitly signal that a domain is not configured to use e-mail. See our [DKIM how-to](https://github.com/internetstandards/toolbox-wiki/blob/master/DKIM-how-to.md) for more information. When used with a wildcard selector, setting an empty public key indicates that all previously used keys are revoked and must be considered unreliable. The owner of a domain can also use this to explicitly signal that a domain is not configured to use e-mail. See our [DKIM how-to](https://github.com/internetstandards/toolbox-wiki/blob/master/DKIM-how-to.md) for more information.
`*._domainkey IN TXT "v=DKIM1; p="` `*._domainkey IN TXT "v=DKIM1; p="`
### SPF ## SPF
Set an an empty policy (not mentioning any ip-adresses or hostnames which are allowed to send mail) and a hard fail. Set an an empty policy (not mentioning any ip-adresses or hostnames which are allowed to send mail) and a hard fail.
`example.nl IN TXT "v=spf1 –all"` `example.nl IN TXT "v=spf1 –all"`
## Domain without a website # Domain without a website
Apply the following settings to domains not using a website.
* Don't use an A or AAAA record for parked domains. * Don't use an A or AAAA record for parked domains.
* Don't redirect from a parked domain to the used domain, since this encourages users to keep using the parked domain name. If a redirect is desirable, make sure to use the proper redirect order in order for HSTS headers to remain effective: * Don't redirect from a parked domain to the used domain, since this encourages users to keep using the parked domain name. If a redirect is desirable, make sure to use the proper redirect order in order for HSTS headers to remain effective:
1. redirect from HTTP to HTTPS on the same (sub)domain. 1. redirect from HTTP to HTTPS on the same (sub)domain.