math.utexas.edu

Valid Email Server
Domain Lookup › math.utexas.edu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
math.utexas.edu
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-23 23:49:11 UTC · ↺ Refresh

MX Hostnames

  • inbound.mail.utexas.edu

MX Priorities

  • inbound.mail.utexas.edu: 10

A / AAAA Records

  • 23.185.0.4
  • 2620:12a:8001::4
  • 2620:12a:8000::4

Mail Server IPs

  • 68.232.147.90 ↩ esa3.utexas.iphmx.com
  • 216.71.154.254 ↩ esa11.utexas.iphmx.com
  • 216.71.150.155 ↩ esa9.utexas.iphmx.com
  • 139.138.32.253 ↩ esa16.utexas.iphmx.com
  • 68.232.147.89 ↩ esa2.utexas.iphmx.com
  • 68.232.149.93 ↩ esa6.utexas.iphmx.com
  • 68.232.147.88 ↩ esa1.utexas.iphmx.com
  • 139.138.32.240 ↩ esa15.utexas.iphmx.com
  • 139.138.56.158 ↩ esa13.utexas.iphmx.com
  • 68.232.147.160 ↩ esa7.utexas.iphmx.com
  • 68.232.149.92
  • 139.138.56.182
  • 68.232.149.94
  • 68.232.149.87

SOA Record

Raw SOA chisos.ots.utexas.edu hostmaster.utexas.edu 50 3600 1800 604800 300
Primary NS (mname)
chisos.ots.utexas.edu
Admin Email (rname)
hostmaster@utexas.edu
Serial
50
Refresh
3600s
Retry
1800s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

marianas.its.utexas.edu
glass.its.utexas.edu
chisos.ots.utexas.edu

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf-m365.mail.utexas.edu include:_spf.google.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

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

All TXT Records

4 records
  • docusign=0a67a2da-2706-481e-b9bc-2ea67f5e9fed
  • docusign=cfec8e11-c654-4073-bbd3-4038a264bce5
  • SPFv=spf1 include:_spf-m365.mail.utexas.edu include:_spf.google.com ~all
  • MS=2476804D14B52BEC8A0A55D83E0E0D3AB34AEFA4
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