domain report
Is poly.edu a business email?
poly.edu 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: detected
Mail setup
- Receives mail
- Yes
- Mail provider
- barracuda
- SPF
- v=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com a:outlook.com mx:poly.edu mx:mail.poly.edu mx:duke.poly.edu mx:minion.poly.edu mx:students.poly.edu ~all
- DMARC policy
- none
| Priority | MX host |
|---|---|
| 10 | d285629a.ess.barracudanetworks.com |
| 15 | d285629b.ess.barracudanetworks.com |
| 20 | poly-edu.mail.protection.outlook.com |
Workspace
- Google WorkspaceNot detected
- Microsoft 365Detected · region NA · managed sign-in
Detected per company domain from public DNS and Microsoft's documented tenant discovery — never per person.
Why this verdict
- education_domain
- mx_microsoft_365
- mx_enterprise_gateway
- spf_present
- dmarc_none
- txt_saas_tokens:1
- ms_tenant
Confidence 93% · recommendation allow under the default b2b policy.
What this means
Addresses at poly.edu 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. poly.edu receives mail through d285629a.ess.barracudanetworks.com, d285629b.ess.barracudanetworks.com, poly-edu.mail.protection.outlook.com.
Questions about poly.edu
Is poly.edu a business email?
It is an organizational email on an education domain. isBusinessEmail returns category "education" with is_business: true.
Can I use poly.edu 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 poly.edu sign-ups?
isBusinessEmail recommends allow for education domains under the b2b, strict and lenient policies.