domain report
Is tjmu.edu.cn a business email?
tjmu.edu.cn is an education domain: a school, college or university.
Education domain — a school or university.
- category
- education
- recommendation
- allow
- confidence
- 93%
- Google Workspace: not detected
- Microsoft 365: not detected
Mail setup
- Receives mail
- Yes
- Mail provider
- —
- SPF
- v=spf1 ip4:113.57.228.210 ip4:111.175.187.190 ip4:111.175.187.182 ip4:111.175.187.188 ip4:111.175.187.189 ip4:202.114.0.240 ip4:202.114.0.230 ip4:202.114.0.231 ip6:2001:250:4000:826E:6EAE:8BFF:FE1D:9D2A include:spf.icoremail.net -all
- DMARC policy
- None
| Priority | MX host |
|---|---|
| 2 | mails.tjmu.edu.cn |
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 93% · recommendation allow under the default b2b policy.
What this means
Addresses at tjmu.edu.cn 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. tjmu.edu.cn receives mail through mails.tjmu.edu.cn.
Questions about tjmu.edu.cn
Is tjmu.edu.cn a business email?
It is an organizational email on an education domain. isBusinessEmail returns category "education" with is_business: true.
Can I use tjmu.edu.cn 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 tjmu.edu.cn sign-ups?
isBusinessEmail recommends allow for education domains under the b2b, strict and lenient policies.