domain report

Is firemail.com.br a disposable email?

Yes. firemail.com.br is a disposable email domain: a throwaway inbox service.

GET /v1/check?domain=firemail.com.brchecked 18 Oct 2026
isBusinessEmail("firemail.com.br")
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
—
DMARC policy
none
MX records for firemail.com.br
PriorityMX host
10_dc-mx.b996b7ff38ca.firemail.com.br

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 firemail.com.br 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). firemail.com.br receives mail through _dc-mx.b996b7ff38ca.firemail.com.br.

See the full disposable email domains list →

Questions about firemail.com.br

Is firemail.com.br a disposable email domain?

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

Should I block firemail.com.br 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 firemail.com.br receive email?

firemail.com.br receives mail through _dc-mx.b996b7ff38ca.firemail.com.br.

How do I detect addresses like firemail.com.br 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.

Learn more

Check another address or domain

check another

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