callahan-inc.com

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
callahan-inc.com
Yes
✓ Yes
Symantec
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 08:18:03 UTC · ↺ Refresh

MX Hostnames

  • cluster1.us.messagelabs.com
  • cluster1a.us.messagelabs.com
  • callahaninc-com02b.mail.protection.outlook.com

MX Priorities

No priority data.

A / AAAA Records

  • 141.193.213.20
  • 141.193.213.21

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

ns3gmt.name.com
ns4cfn.name.com
ns1gmz.name.com
ns2jrt.name.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.messagelabs.com include:spf.birddoghr.com include:spf.protection.outlook.com include:_spf.psm.knowbe4.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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

8 records
  • C0A4L81287
  • MS=ms89846774
  • SPFv=spf1 include:spf.messagelabs.com include:spf.birddoghr.com include:spf.protection.outlook.com include:_spf.psm.knowbe4.com -all
  • zmAhzv1ddmb3vIkOx4TWgQv5xBqleGGgZN9tMOnqEJjyk2Eb4rsgcD8XaQfKkRkhR/VdyFcMdOki+HHZGMf5Yg==
  • wj4v5s2w91mc229w33gv65bzhnx61yw4
  • docusign=fa5e4073-73a3-45f0-814e-23b33c951ed4
  • Y2FsbGFoYW4=
  • apple-domain-verification=ohs3Y8rDZJMr7MGy
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