sfsu.edu

Valid Email Server
Domain Lookup › sfsu.edu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
sfsu.edu
Yes
✓ Yes
Outlook
No
Yes
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-25 19:22:15 UTC · ↺ Refresh

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MX Hostnames

  • sfsu-edu.mail.protection.outlook.com

MX Priorities

  • sfsu-edu.mail.protection.outlook.com: 0

A / AAAA Records

  • 23.185.0.4 (no PTR)
  • 2620:12a:8000::4 (no PTR)
  • 2620:12a:8001::4

Mail Server IPs

  • 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
  • 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
  • 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
  • 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.sfsu.edu root.sfsu.edu 2026032603 3600 1800 2419200 3600
Primary NS (mname)
ns1.sfsu.edu
Admin Email (rname)
root@sfsu.edu
Serial
2026032603
Refresh
3600s
Retry
1800s
Expire
2419200s
Minimum TTL
3600s

Nameservers (NS)

ns5.cenic.org
ns1.sfsu.edu
ns4.cenic.org
ns2.sfsu.edu
ns6.cenic.org

SPF Record

✓ Strict (-all)
v=spf1 include:_spf1.sfsu.edu include:_spf2.sfsu.edu include:spf.protection.outlook.com include:spf.blackboardconnect.com a:b.spf.service-now.com include:finalsiteconnect.com ip4:130.212.31.33 ip4:130.212.31.39 ip4:130.212.105.49 -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

DKIM Selectors

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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

10 records
  • airtable-verification=ad937cbf93f5caf63abaae3796e7b426
  • SPFv=spf1 include:_spf1.sfsu.edu include:_spf2.sfsu.edu include:spf.protection.outlook.com include:spf.blackboardconnect.com a:b.spf.service-now.com include:finalsiteconnect.com ip4:130.212.31.33 ip4:130.212.31.39 ip4:130.212.105.49 -all
  • teamviewer-sso-verification=c67318170dc94bb19e5dff2063724c87
  • docusign=eb1bc058-9abb-41e3-9898-a5caa7b2e111
  • adobe-idp-site-verification=f02e747d9e2e56b7ae34612a76aedabb5155429217b4cd9431941c260f00fe9a
  • have-i-been-pwned-verification=4c80242a38bf005b23e3a53e2a2d7f88
  • smartsheet-site-validation=ha9wP89lo6rhPeOfQ3NYuSn7wbiegewE
  • 0UF8JKB3YJCE43G1WTXHE8GO2CEBNWFA4D63EGZ5V
  • canva-site-verification=QcBWYwAYILmBUomGgDInYA
  • airtable-verification=d01e396a4d69a0f8846474a4b072a999
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