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by sam_lowry_ 56 days ago
Heh, here you go: http://mxmap.be https://mxmap.ch/ https://kommune-epost-norge.netlify.app/ for Norway and https://swedish-mail-dependency.netlify.app/ for Sweden.

France even has an official map of this kind, with publicly visible recommendations: https://suiteterritoriale.anct.gouv.fr/conformite/cartograph...

Disclaimer: I made mxmap.be after seeing Swiss ant Dutch counterparts. I did not look at MX records only but also at EHLO replies, SPF and DMARC records and at fronting services.

1 comments

Any recommendations / lessons learned when building this? I would love to give it a go for Brazil if one doesn't already exist around the time of my holidays in June/July.
Just take the source, and ask your LLM to do the Brazilian version. It should not take more than a couple hours, including manual checks.

Do not forget to minimize the geojson (there is even a web-based service for that) and to enable compression in your web server.