rossier.usc.edu

Valid Email Server
Domain Lookup › rossier.usc.edu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
rossier.usc.edu
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-19 20:18:42 UTC · ↺ Refresh

MX Hostnames

  • mx0b-00164701.pphosted.com
  • mx0a-00164701.pphosted.com

MX Priorities

  • mx0b-00164701.pphosted.com: 50
  • mx0a-00164701.pphosted.com: 50

A / AAAA Records

  • 23.185.0.1 (no PTR)
  • 2620:12a:8000::1 (no PTR)
  • 2620:12a:8001::1 (no PTR)

Mail Server IPs

  • 67.231.157.15 ↩ mx0b-00164701.pphosted.com
  • 67.231.149.15 ↩ mx0a-00164701.pphosted.com

SOA Record

Raw SOA ns0037.secondary.cloudflare.com root.usc.edu 703874510 3600 1800 360000 3600
Primary NS (mname)
ns0037.secondary.cloudflare.com
Admin Email (rname)
root@usc.edu
Serial
703874510
Refresh
3600s
Retry
1800s
Expire
360000s
Minimum TTL
3600s

Nameservers (NS)

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

SPF Record

✓ Soft Fail (~all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._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

4 records
  • apple-domain-verification=uIE81k8iprGMBzNf
  • google-gws-recovery-domain-verification=59674628
  • google-site-verification=6O1KRl1NlHserZx_mJG8Lm75TWjgkdthIvqdH-VfjRU
  • SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
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