Is courriel.fr.nf a disposable email provider?

Yes. courriel.fr.nf is a known throwaway provider, and right now it accepts mail today.

What courriel.fr.nf actually does right now

Checked against live DNS when this page was last built. Most pages answering this question quote a list; this one quotes the domain.

Mail routingaccepts mail today
MX hostscourriel.fr.nf
SPF publishedno
DMARC publishedno
Related domains on our list5

It publishes working MX records, so mail sent there is delivered - and then abandoned. This is the ordinary case and the reason the address looks fine to a regex.

Blocking it

GET /v1/email/verify?email=someone@courriel.fr.nf
→ "sub_status": "disposable", "score": 5

Sub-domains match the same rule, so anything.courriel.fr.nf is caught too. Classification is a set lookup, so it costs no latency; the DNS evidence above is what the deep flag adds.

Why throwaway signups cost money, and the full provider list with live status →

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