domain report
Is instaddr.win a disposable email?
Yes. instaddr.win 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 +ip4:133.130.98.68 +ip4:133.130.106.114 +ip4:133.130.89.240 +ip4:160.251.102.69 +ip4:160.251.81.146 +ip4:133.130.102.153 +ip4:160.251.107.128 +ip4:160.251.83.234 +ip4:133.130.91.161 +ip4:133.130.91.97 +ip4:133.130.108.233 +ip4:160.16.149.19 -all
- DMARC policy
- reject
| Priority | MX host |
|---|---|
| 10 | recv300.erinn.biz |
| 10 | recv301.erinn.biz |
| 10 | recv302.erinn.biz |
| 10 | recv303.erinn.biz |
| 10 | recv304.erinn.biz |
| 10 | recv305.erinn.biz |
| 10 | recv306.erinn.biz |
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 instaddr.win 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). instaddr.win receives mail through recv300.erinn.biz, recv301.erinn.biz, recv302.erinn.biz and more.
Questions about instaddr.win
Is instaddr.win a disposable email domain?
Yes. instaddr.win is on the isBusinessEmail disposable list, so a check returns category "disposable" and the recommendation "block".
Should I block instaddr.win 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 instaddr.win receive email?
instaddr.win receives mail through recv300.erinn.biz, recv301.erinn.biz, recv302.erinn.biz and more.
How do I detect addresses like instaddr.win 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.