tsbvi.edu

Valid Email Server
Domain Lookup › tsbvi.edu

Domain Overview

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

Checked via [email protected] · 2026-06-10 22:24:13 UTC · ↺ Refresh

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MX Hostnames

  • alt1.aspmx.l.google.com
  • aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • alt4.aspmx.l.google.com
  • alt3.aspmx.l.google.com

MX Priorities

  • alt4.aspmx.l.google.com: 10
  • alt2.aspmx.l.google.com: 5
  • alt1.aspmx.l.google.com: 5
  • aspmx.l.google.com: 1
  • alt3.aspmx.l.google.com: 10

A / AAAA Records

  • 141.193.213.20
  • 141.193.213.21

Mail Server IPs

  • 172.253.157.27 ↩ yubrupd-in-f27.1e100.net
  • 2a00:1450:400c:c23::1b ↩ yubrupd-in-f27.1e100.net
  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1b (no PTR)
  • 142.251.111.27 ↩ bk-in-f27.1e100.net
  • 2607:f8b0:4004:c19::1b ↩ bk-in-f27.1e100.net
  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net

SOA Record

Raw SOA ns.capnet.state.tx.us hostmaster.capnet.state.tx.us 2026051301 7200 3600 3600000 600
Primary NS (mname)
ns.capnet.state.tx.us
Admin Email (rname)
hostmaster@capnet.state.tx.us
Serial
2026051301
Refresh
7200s
Retry
3600s
Expire
3600000s
Minimum TTL
600s

Nameservers (NS)

lenox.williams.edu
ns.capnet.state.tx.us
lee.williams.edu

SPF Record

✗ Invalid
v=spf1 include:UniversalSpf.org ~include:x.UniversalSpf.org include:_spf.google.com include:spf.mojohelpdesk.com include:sky-dalrel-eml.iscorp.com include:_spfesc.tsbvi.edu ip4:192.188.148.0/24 include:mailgun.org ip4:198.58.101.143 include:spf.cpa.state.tx.us include:groups.io ip4:168.39.182.106 include:customerspf.schoolmessenger.com a:email.ers.texas.gov ~all
📊 DNS lookups: 11/10 — over limit!
⚠ Too many DNS lookups (11/10) — SPF will fail validation. Reduce include: statements.

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=1; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
⚠ Policy applies to 1% of failing messages only

DKIM Selectors

✓ 1 found
google._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

5 records
  • adobe-idp-site-verification=a54b65714ad25f6333cd4a7474433f3d07f43d5071406a6f778630819b4319aa
  • MS=840F109E17F80DECD189625AF042427AFAA24A3D
  • apple-domain-verification=9LuvwJ31Ctx30QSh
  • SPFv=spf1 include:UniversalSpf.org ~include:x.UniversalSpf.org include:_spf.google.com include:spf.mojohelpdesk.com include:sky-dalrel-eml.iscorp.com include:_spfesc.tsbvi.edu ip4:192.188.148.0/24 include:mailgun.org ip4:198.58.101.143 include:spf.cpa.state.tx.us include:groups.io ip4:168.39.182.106 include:customerspf.schoolmessenger.com a:email.ers.texas.gov ~all
  • google-site-verification=7OeCzVL58gEEO0Lt8fC3M0nMmOujCmwRcPACROvGYAY
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