blduke.com

Valid Email Server
Domain Lookup › blduke.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
blduke.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-06-03 09:44:02 UTC · ↺ Refresh

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MX Hostnames

  • us-smtp-inbound-2.mimecast.com
  • us-smtp-inbound-1.mimecast.com

MX Priorities

  • us-smtp-inbound-1.mimecast.com: 10
  • us-smtp-inbound-2.mimecast.com: 20

A / AAAA Records

  • 172.67.73.23 (no PTR)
  • 104.26.4.66 (no PTR)
  • 104.26.5.66 (no PTR)
  • 2606:4700:20::681a:442 (no PTR)
  • 2606:4700:20::ac43:4917
  • 2606:4700:20::681a:542

Mail Server IPs

  • 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com

SOA Record

Raw SOA ian.ns.cloudflare.com dns.cloudflare.com 2403798026 10000 2400 604800 1800
Primary NS (mname)
ian.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2403798026
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

ian.ns.cloudflare.com
meera.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:12.229.173.34 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:_spf.salesforce.com include:spf.salesforce.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; 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

5 records
  • SPFv=spf1 mx ip4:12.229.173.34 include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:_spf.salesforce.com include:spf.salesforce.com -all
  • 0ed1fe018a07253ea967104635b90929916c3e6519
  • hch0d8a6gsth79cdfag38qph0o
  • jcgtvkvhkuffo2dh0sh67rllfi
  • ppe-62b5a4e4da199938be88
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