domain report
Is lr7.us a disposable email?
Yes. lr7.us 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
- —
- SPF
- v=spf1 mx -all
- DMARC policy
- None
| Priority | MX host |
|---|---|
| 10 | mail.casadorock.com |
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 lr7.us 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). lr7.us receives mail through mail.casadorock.com.
Questions about lr7.us
Is lr7.us a disposable email domain?
Yes. lr7.us is on the isBusinessEmail disposable list, so a check returns category "disposable" and the recommendation "block".
Should I block lr7.us 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 lr7.us receive email?
lr7.us receives mail through mail.casadorock.com.
How do I detect addresses like lr7.us 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.