bluedotmd.com

Valid Email Server
Domain Lookup › bluedotmd.com

Domain Overview

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

Checked via [email protected] · 2026-03-23 14:37:01 UTC · ↺ Refresh

MX Hostnames

  • mxb-00235301.gslb.pphosted.com
  • mxa-00235301.gslb.pphosted.com

MX Priorities

  • mxa-00235301.gslb.pphosted.com: 10
  • mxb-00235301.gslb.pphosted.com: 10

A / AAAA Records

  • 104.18.16.169 (no PTR)
  • 104.18.17.169 (no PTR)
  • 2606:4700::6812:10a9 (no PTR)
  • 2606:4700::6812:11a9 (no PTR)

Mail Server IPs

  • 148.163.158.122 ↩ mx0b-00235301.pphosted.com
  • 148.163.156.199 ↩ mx0a-00235301.pphosted.com

SOA Record

Raw SOA kurt.ns.cloudflare.com dns.cloudflare.com 2396625760 10000 2400 604800 1800
Primary NS (mname)
kurt.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396625760
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

kurt.ns.cloudflare.com
melody.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:24.112.129.118 ip4:208.65.144.0/21 ip4:208.81.64.0/21 ip4:216.119.138.0/28 ip4:52.71.181.42 include:spf.protection.outlook.com include:spf-00235301.pphosted.com a:secmail.ultipro.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 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

2 records
  • SPFv=spf1 ip4:24.112.129.118 ip4:208.65.144.0/21 ip4:208.81.64.0/21 ip4:216.119.138.0/28 ip4:52.71.181.42 include:spf.protection.outlook.com include:spf-00235301.pphosted.com a:secmail.ultipro.com -all
  • Hg5/A5EpVMsGX47rLYsQMfRzbIxL9Zm6HFVSmnn64qdm3tWFuwK94SuG6XcBwqyBCJGqlfA73+FUNN/rOjmUHw==
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