domain report
Is komazawa-u.ac.jp a business email?
komazawa-u.ac.jp is an education domain: a school, college or university.
Education domain — a school or university.
- category
- education
- recommendation
- allow
- confidence
- 93%
- Google Workspace: detected
- Microsoft tenant: detected
Mail setup
- Receives mail
- Yes
- Mail provider
- —
- SPF
- v=spf1 include:_spf.google.com ip4:202.241.124.103 ip4:202.241.124.104 ip4:202.241.124.105 ip4:202.241.125.82 ip4:111.171.222.159 ip4:164.70.5.155 ip4:13.231.25.201 ip4:153.120.43.228 include:spf.ess.nifcloud.com include:mail.ma-jin.jp include:_spf.fundexapp.jp include:sender.zcsend.jp ~all
- DMARC policy
- none
| Priority | MX host |
|---|---|
| 10 | mx.komazawa-u.ac.jp |
| 20 | asahi5.komazawa-u.ac.jp |
| 20 | asahi4.komazawa-u.ac.jp |
Workspace
- Google WorkspaceDetected
- Microsoft 365Tenant only: Microsoft sign-in works, email runs elsewhere · region AS · managed sign-in
Detected per company domain from public DNS and Microsoft's documented tenant discovery — never per person.
Why this verdict
Confidence 93% · recommendation allow under the default b2b policy.
What this means
Addresses at komazawa-u.ac.jp belong to an institution's own domain, so isBusinessEmail treats them as organizational: is_business is true and the recommendation is allow under every policy. It is on our education domains list.
Students and staff use these addresses, which makes them useful for academic discounts and verification. komazawa-u.ac.jp receives mail through mx.komazawa-u.ac.jp, asahi5.komazawa-u.ac.jp, asahi4.komazawa-u.ac.jp.
Questions about komazawa-u.ac.jp
Is komazawa-u.ac.jp a business email?
It is an organizational email on an education domain. isBusinessEmail returns category "education" with is_business: true.
Can I use komazawa-u.ac.jp to verify students?
An address on an education domain shows the person has an account at the institution, which many companies accept for student discounts. Alumni and staff may have one too.
Should I allow komazawa-u.ac.jp sign-ups?
isBusinessEmail recommends allow for education domains under the b2b, strict and lenient policies.