Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
mail.sfsu.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-19 06:03:22 UTC · ↺ Refresh
MX Hostnames
- mail-sfsu-edu.mail.protection.outlook.com
MX Priorities
- mail-sfsu-edu.mail.protection.outlook.com: 10
A / AAAA Records
- 130.212.96.31 ↩ email.sfsu.edu
Mail Server IPs
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
SOA Record
No SOA record found.
Nameservers (NS)
No nameservers found.
SPF Record
✓ Strict (-all)
v=spf1 ip4:130.212.31.31 ip4:130.212.31.32 ip4:130.212.31.33 ip4:130.212.31.39 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- SPFv=spf1 ip4:130.212.31.31 ip4:130.212.31.32 ip4:130.212.31.33 ip4:130.212.31.39 include:spf.protection.outlook.com -all
- have-i-been-pwned-verification=dbd5c9da5867863ad30dc2435313ef4f
- google-site-verification=F-zbYIFHiP8jIO_mC81SWxLPxYzogjQNIQqskGIo2gk
- smartsheet-site-validation=PBDsYi_y0JhF8ozesmlQbfc7yiUrqGvx
- docusign=4a912678-eceb-45b3-8778-f14aa15c1c1b
- adobe-idp-site-verification=f02e747d9e2e56b7ae34612a76aedabb5155429217b4cd9431941c260f00fe9a
- canva-site-verification=bwN8i_piLWz7LAImo70I9g
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for mail.sfsu.edu
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits