capitalonebank.com

Valid Email Server
Domain Lookup › capitalonebank.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
capitalonebank.com
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-20 21:07:17 UTC · ↺ Refresh

MX Hostnames

  • mx0b-001b4103.pphosted.com
  • mx0a-001b4103.pphosted.com

MX Priorities

  • mx0a-001b4103.pphosted.com: 10
  • mx0b-001b4103.pphosted.com: 10

A / AAAA Records

  • 23.48.224.101 ↩ a23-48-224-101.deploy.static.akamaitechnologies.com
  • 23.48.224.104 ↩ a23-48-224-104.deploy.static.akamaitechnologies.com
CNAME → home.capitalone360.com.edgekey.net

Mail Server IPs

  • 148.163.133.70 ↩ mx0a-001b4103.pphosted.com
  • 148.163.137.70 ↩ mx0b-001b4103.pphosted.com

SOA Record

Raw SOA ns1.capitalone.com hostmaster.capitalone.com 2023100118 10800 3600 2419200 3600
Primary NS (mname)
ns1.capitalone.com
Admin Email (rname)
hostmaster@capitalone.com
Serial
2023100118
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
3600s

Nameservers (NS)

ns1.capitalone.com
ns3.capitalone.com
a18-66.akam.net
a1-219.akam.net
ns4.capitalone.com
a28-65.akam.net
a3-64.akam.net
a4-67.akam.net
a7-64.akam.net
ns6.capitalone.com
ns5.capitalone.com

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

DMARC Record

✓ Reject
v=DMARC1; p=reject; sp=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

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

No TXT records found.

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