domain report
Is esf.edu a business email?
esf.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
- microsoft 365
- SPF
- v=spf1 ip4:149.119.7.44 ip4:149.119.6.0/24 ip4:147.160.167.0/26 ip4:23.21.109.197 ip4:23.21.109.212 ip4:128.230.171.72 ip4:216.27.11.70 ip4:216.27.20.130 ip4:216.27.20.140 ip4:136.226.155.13 ip4:216.27.20.141/30 ip4:216.24.224.0/20 ip4:136.223.155.13 ip4:52.55.21.93 ip4:34.197.131.165 ip4:52.5.21.95 ip4:52.45.21.204 ip4:34.202.114.167 ip4:205.139.105.168 ip4:50.31.38.253 ip4:149.72.197.36 ip4:149.72.61.6 ip4:149.72.244.64 ip4:149.72.24.152 ip4:167.89.90.10 ip4:167.89.90.109 ip4:192.237.159.131 ip4:161.38.192.196 ip4:192.237.159.132 ip4:159.112.247.178 ip4:192.237.158.52 ip4:161.38.199.254 ip4:159.112.247.179 ip4:69.72.46.73 ip4:104.130.123.85 ip4:192.237.159.133 ip4:159.112.247.180 ip4:159.135.237.56 ip4:159.112.247.182 ip4:159.112.247.181 ip4:69.72.44.24 ip4:69.72.46.79 ip4:69.72.40.228 ip4:159.135.226.83 ip4:159.112.241.1 ip4:159.112.242.178 ip4:159.112.252.237 ip4:161.38.197.221 ip4:161.38.198.110 ip4:161.38.199.254 ip4:205.139.105.48/29 ip4:206.79.6.128/26 ip4:136.223.204.96 ip4:136.223.204.97 ip4:208.40.241.140/30 ip4:216.37.18.6 ip4:204.8.10.114 ip4:216.235.197.198 ip4:64.209.141.221 ip4:205.139.104.0/22 ip4:216.235.196.0/22 ip4:216.235.200.0/21 ip4:216.235.195.0/24 ip4:23.21.109.197 ip4:23.21.109.212 ip4:34.199.159.209 ip4:34.197.134.60 ip4:147.160.167.14 ip4:147.160.167.15 ip4:52.49.235.189 ip4:52.49.201.246 ip4:34.251.106.174 ip4:216.27.11.70 ip4:216.27.20.130 ip4:216.27.20.140 ip4:216.27.20.141 ip4:216.27.20.142 ip4:216.24.224.0/20 ip4:18.223.90.162 ip4:198.207.147.224/27 ip4:204.239.0.224/27 ip4:216.230.14.224/27 include:svc.ny.gov exists:%{i}._spf.sparkpostmail.com include:spf.protection.outlook.com include:cust-spf.cashnet.com include:spf.zohomail360.com include:illiad.oclc.org -all
- DMARC policy
- quarantine
| Priority | MX host |
|---|---|
| 10 | esf-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
Confidence 93% · recommendation allow under the default b2b policy.
What this means
Addresses at esf.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. esf.edu receives mail through esf-edu.mail.protection.outlook.com.
Questions about esf.edu
Is esf.edu a business email?
It is an organizational email on an education domain. isBusinessEmail returns category "education" with is_business: true.
Can I use esf.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 esf.edu sign-ups?
isBusinessEmail recommends allow for education domains under the b2b, strict and lenient policies.