domain report
Is csumb.edu a business email?
csumb.edu 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
- google workspace
- SPF
- v=spf1 include:_spf1.csumb.edu include:_spf2.csumb.edu ip4:162.247.216.0/22 ip4:139.60.152.0/22 ip4:98.97.248.0/21 ip4:64.69.212.0/24 ip4:54.186.193.102/32 ip4:52.222.73.120/32 ip4:52.222.73.83 ip4:52.222.62.51 ip4:52.222.75.85 ip4:52.222.89.228 ip4:160.1.62.192 ip4:52.61.91.9 ip4:15.200.21.50 ip4:15.200.201.185 ip4:15.200.44.248 ip4:176.31.145.254 -all
- DMARC policy
- quarantine
| Priority | MX host |
|---|---|
| 1 | aspmx.l.google.com |
| 5 | alt1.aspmx.l.google.com |
| 5 | alt2.aspmx.l.google.com |
| 10 | alt3.aspmx.l.google.com |
| 10 | alt4.aspmx.l.google.com |
| 10 | feedback-smtp.us-east-1.amazonses.com |
Workspace
- Google WorkspaceDetected
- Microsoft 365Tenant only: Microsoft sign-in works, email runs elsewhere · region NA · federated sign-in · IdP okta
Detected per company domain from public DNS and Microsoft's documented tenant discovery — never per person.
Why this verdict
- education_domain
- mx_google_workspace
- spf_present
- dmarc_quarantine
- txt_saas_tokens:5
- dkim_google
- ms_tenant
- ms_federated
Confidence 93% · recommendation allow under the default b2b policy.
What this means
Addresses at csumb.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. csumb.edu receives mail through aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and more.
Questions about csumb.edu
Is csumb.edu a business email?
It is an organizational email on an education domain. isBusinessEmail returns category "education" with is_business: true.
Can I use csumb.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 csumb.edu sign-ups?
isBusinessEmail recommends allow for education domains under the b2b, strict and lenient policies.