Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
utsa.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 02:43:45 UTC · ↺ Refresh
MX Hostnames
- utsa-edu.mail.protection.outlook.com
MX Priorities
- utsa-edu.mail.protection.outlook.com: 1
A / AAAA Records
- 129.115.120.39 ↩ utsa.edu
Mail Server IPs
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.utsa.edu hostmaster.utsa.edu 2903 10800 3600 2419200 900
Primary NS (mname)
ns1.utsa.edu
Admin Email (rname)
hostmaster@utsa.edu
Serial
2903
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
ns2.utsa.edu
ns3.utsa.edu
ns1.utsa.edu
SPF Record
✓ Strict (-all)
v=spf1 ip4:205.220.160.34 ip4:149.72.231.47 ip4:205.220.172.34 ip4:129.115.103.16/30 ip4:129.115.83.5 ip4:206.107.42.249 ip4:206.107.42.254 ip4:74.122.104.26 ip4:74.213.141.250/31 ip4:207.64.118.220 include:spf1.utsa.edu include:spf.protection.outlook.com include:cust-spf.exacttarget.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;fo=1;ri=3600;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected],mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
15 records- adobe-idp-site-verification=2ce024e36c58f90e6bc078dec6e3b9bb26aedc2b6241b2fa87b45a261596f03b
- H67eEPPPgJ4T5pUnAoFqv0WgfS1yJbxd5bRFB35VQtbNU/HYCb9/TklrXUDDcWEEPIEy/eVc/dsogO17dsBXrQ==
- docusign=4833d3eb-9318-4110-85a4-bf3cd7fd7eb6
- EQRPKIK00SF2SCVOWV3HHZ7WKX8M2B0GDPUCJA3PX
- jamf-site-verification=wSPdodZqZUnbTqCdAVgNuw
- SPFv=spf1 ip4:205.220.160.34 ip4:149.72.231.47 ip4:205.220.172.34 ip4:129.115.103.16/30 ip4:129.115.83.5 ip4:206.107.42.249 ip4:206.107.42.254 ip4:74.122.104.26 ip4:74.213.141.250/31 ip4:207.64.118.220 include:spf1.utsa.edu include:spf.protection.outlook.com include:cust-spf.exacttarget.com -all
- 6199c8m+SvPe1x7KxoaXK8IWOAh9FBCrvwBD5vGEMk2oGHoeaJpKmdi2fATB4E9EVgKkDKA2CIRnRkGjsKAnFg==
- apple-domain-verification=2KimFxpvtZtMiJkW
- cisco-ci-domain-verification=55601dc3c838ad278d5b07cae2e51a2fa52288ed6c5e9c4fe23762902b63ea8b
- google-site-verification=bPfMEHHdz3yYRzlgnPmBCZBVS5buWTVcA6jkvNrsoW0
- google-site-verification=sM97KnmNFw0gQUXibo7F9E65-O6mp9yyQ6BEx0sRal4
- brevo-code:3c35d9ec0b376a3fa91435242522ac5d
- MS=ms80190545
- RTEAIT5SHL0BJ3OUTGHSNSCAMP
- n3jaiifv2rcncan27ng1fouh2g
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 utsa.edu
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits