Is byom.de a disposable email provider?

Yes. byom.de is a known throwaway provider, and right now it accepts mail today.

What byom.de actually does right now

Resolved against live DNS on 2026-10-24. Most pages answering this question quote a list; this one quotes the domain.

Mail routingaccepts mail today
MX hostssmtp.byom.de
SPF publishedno
DMARC publishedno

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@byom.de
→ "sub_status": "disposable", "score": 5

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

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