domain report

Is substoretools.com a disposable email?

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

GET /v1/check?domain=substoretools.comchecked 18 Oct 2026
isBusinessEmail("substoretools.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
hostinger
SPF
v=spf1 include:_spf.mail.hostinger.com ~all
DMARC policy
none
MX records for substoretools.com
PriorityMX host
1emailqu.com
5mx1.hostinger.com
10mx2.hostinger.com
10tinyhost.shop

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 substoretools.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). substoretools.com receives mail through emailqu.com, mx1.hostinger.com, mx2.hostinger.com and more.

See the full disposable email domains list →

Questions about substoretools.com

Is substoretools.com a disposable email domain?

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

Should I block substoretools.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 substoretools.com receive email?

substoretools.com receives mail through emailqu.com, mx1.hostinger.com, mx2.hostinger.com and more.

How do I detect addresses like substoretools.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.

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.