domain report

Is sage.mailinator.com a disposable email?

Yes. sage.mailinator.com is a disposable email domain: a throwaway inbox service.

GET /v1/check?domain=sage.mailinator.comchecked 18 Oct 2026
isBusinessEmail("sage.mailinator.com")
false

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 -all
DMARC policy
reject
MX records for sage.mailinator.com
PriorityMX host
1mail.mailinator.com
1mail2.mailinator.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 sage.mailinator.com 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). sage.mailinator.com receives mail through mail.mailinator.com, mail2.mailinator.com.

See the full disposable email domains list →

Questions about sage.mailinator.com

Is sage.mailinator.com a disposable email domain?

Yes. sage.mailinator.com is on the isBusinessEmail disposable list, so a check returns category "disposable" and the recommendation "block".

Should I block sage.mailinator.com 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 sage.mailinator.com receive email?

sage.mailinator.com receives mail through mail.mailinator.com, mail2.mailinator.com.

How do I detect addresses like sage.mailinator.com 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.

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Checked over a POST request — nothing you type ends up in a URL or in analytics.