domain report
Is rennes-sb.com a business email?
rennes-sb.com 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
- microsoft 365
- SPF
- v=spf1 include:spf.protection.outlook.com include:_spf.fullfabric.com include:25585907.spf05.hubspotemail.net include:mail.zendesk.com include:_spf.netanswer.fr include:servers.mcsv.net include:eskerondemand.com ip4:46.105.57.169 ip4:93.188.174.148 -all
- DMARC policy
- quarantine
| Priority | MX host |
|---|---|
| 0 | rennessb-com01e.mail.protection.outlook.com |
Workspace
- Google WorkspaceNot detected
- Microsoft 365Detected · region EU · 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
- spf_present
- spf_business_saas
- dmarc_quarantine
- txt_saas_tokens:2
- ms_tenant
Confidence 93% · recommendation allow under the default b2b policy.
What this means
Addresses at rennes-sb.com 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. rennes-sb.com receives mail through rennessb-com01e.mail.protection.outlook.com.
Questions about rennes-sb.com
Is rennes-sb.com a business email?
It is an organizational email on an education domain. isBusinessEmail returns category "education" with is_business: true.
Can I use rennes-sb.com 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 rennes-sb.com sign-ups?
isBusinessEmail recommends allow for education domains under the b2b, strict and lenient policies.