When I lookup your domain thuijls.net on MXToolBox I get the following messageL
Dns record not found
They explain this to mean:
More Information About Dns Record Published
We did not find a SPF (TXT) record for the domain. Either you are using the deprecated type "SPF" record (in which case you will see a warning message for this alongside this ...
To answer your question, ill first try to give simple explanations for each policy to help with the confusion (https://docs.aws.amazon.com/Route53/latest/DeveloperGuide/routing-policy.html).
Simple: a basic routing policy that randomly sends a user to one of
Failover: You have a primary (active) route and a secondary (passive)
route. When ...