Question 1

Is fr.nf a disposable email provider?

Accepted Answer

Yes. fr.nf is a temporary/disposable email service — addresses generated on it are meant for short-term use and should generally be treated as unreachable for signups.

Question 2

How many domains does fr.nf use?

Accepted Answer

We've linked 5 domains to fr.nf. Disposable providers commonly rotate through many domains to evade domain-based blocklists.

Question 3

What mail infrastructure does fr.nf run on?

Accepted Answer

Domains on fr.nf share mail infrastructure: MX hosts under fr.nf. That shared infrastructure is how we detect new rotating domains from this provider.

Question 4

How do I block signups from fr.nf?

Accepted Answer

Check the sender's email domain against BounceCheck's disposable-email API before accepting a signup — domains matching fr.nf's known infrastructure are flagged automatically.

fr.nf

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