domain report
Is hacker9.org a disposable email?
Yes. hacker9.org is a disposable email domain: a throwaway inbox service.
Disposable inbox — it will stop receiving mail soon.
- category
- disposable
- recommendation
- block
- confidence
- 97%
- Google Workspace: not detected
- Microsoft 365: not detected
Mail setup
- Receives mail
- Yes
- Mail provider
- cloudflare email routing
- SPF
- v=spf1 include:_spf.mx.cloudflare.net ~all
- DMARC policy
- None
| Priority | MX host |
|---|---|
| 68 | route1.mx.cloudflare.net |
| 70 | route3.mx.cloudflare.net |
| 89 | route2.mx.cloudflare.net |
Workspace
- Google WorkspaceNot detected
- Microsoft 365Not detected
Detected per company domain from public DNS and Microsoft's documented tenant discovery — never per person.
Why this verdict
Confidence 97% · recommendation block under the default b2b policy.
What this means
Addresses at hacker9.org are created in seconds without sign-up and are usually abandoned soon after. They are used to get past email verification, claim free trials more than once or avoid follow-up email. It is on our disposable email domains list.
isBusinessEmail returns category "disposable" and recommends block under every policy (b2b, strict and lenient). hacker9.org receives mail through route1.mx.cloudflare.net, route3.mx.cloudflare.net, route2.mx.cloudflare.net.
Questions about hacker9.org
Is hacker9.org a disposable email domain?
Yes. hacker9.org is on the isBusinessEmail disposable list, so a check returns category "disposable" and the recommendation "block".
Should I block hacker9.org at sign-up?
For most products, yes: a disposable inbox stops receiving mail soon, so you can't reach the user later. isBusinessEmail recommends block under all three policies.
Can hacker9.org receive email?
hacker9.org receives mail through route1.mx.cloudflare.net, route3.mx.cloudflare.net, route2.mx.cloudflare.net.
How do I detect addresses like hacker9.org automatically?
Call POST /v1/check with the address or domain. Disposable domains come back with is_disposable: true, from a list merged from open sources and our own detection and updated daily.