pt.usc.edu

Valid Email Server
Domain Lookup › pt.usc.edu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
pt.usc.edu
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-21 12:35:02 UTC · ↺ Refresh

MX Hostnames

  • pt-usc-edu.mail.protection.outlook.com
  • mx0b-00164701.pphosted.com
  • mx0a-00164701.pphosted.com

MX Priorities

  • mx0b-00164701.pphosted.com: 10
  • pt-usc-edu.mail.protection.outlook.com: 50
  • mx0a-00164701.pphosted.com: 10

A / AAAA Records

  • 141.193.213.10
  • 141.193.213.11

Mail Server IPs

  • 67.231.157.15 ↩ mx0b-00164701.pphosted.com
  • 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
  • 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
  • 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
  • 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
  • 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
  • 67.231.149.15 ↩ mx0a-00164701.pphosted.com

SOA Record

Raw SOA ns0037.secondary.cloudflare.com root.usc.edu 703874499 3600 1800 360000 3600
Primary NS (mname)
ns0037.secondary.cloudflare.com
Admin Email (rname)
root@usc.edu
Serial
703874499
Refresh
3600s
Retry
1800s
Expire
360000s
Minimum TTL
3600s

Nameservers (NS)

ns0055.secondary.cloudflare.com
ns0191.secondary.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

1 record
  • SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com -all
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