krollworldwide.com

Valid Email Server
Domain Lookup › krollworldwide.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
krollworldwide.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 01:01:56 UTC · ↺ Refresh

MX Hostnames

  • smtp2.mail.krollworldwide.com
  • smtp1.mail.krollworldwide.com
  • smtp3.mail.krollworldwide.com
  • smtp4.mail.krollworldwide.com

MX Priorities

  • smtp2.mail.krollworldwide.com: 10
  • smtp3.mail.krollworldwide.com: 10
  • smtp4.mail.krollworldwide.com: 10
  • smtp1.mail.krollworldwide.com: 10

A / AAAA Records

  • 208.71.239.93 (no PTR)

Mail Server IPs

  • 208.71.237.36 (no PTR)
  • 193.37.237.73 ↩ smtp3.mail.krolldiscovery.com
  • 193.37.237.74 ↩ smtp4.mail.krollworldwide.com
  • 208.71.237.35 (no PTR)

SOA Record

Raw SOA ns-1127.awsdns-12.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1127.awsdns-12.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-25.awsdns-03.com
ns-632.awsdns-15.net
ns-1127.awsdns-12.org
ns-1737.awsdns-25.co.uk

SPF Record

✓ Strict (-all)
v=spf1 ip4:208.71.237.0/24 ip4:193.37.237.0/24 ip4:207.12.234.129 ip4:208.71.238.38 ip4:217.77.181.100 ip4:204.13.136.221 ip4:216.52.232.8 ip4:72.23.28.30 ip4:63.91.180.36 ip4:63.91.180.15 ip4:216.154.252.82 ip4:199.255.140.41 ip4:85.133.6.32 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

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

3 records
  • SPFv=spf1 ip4:208.71.237.0/24 ip4:193.37.237.0/24 ip4:207.12.234.129 ip4:208.71.238.38 ip4:217.77.181.100 ip4:204.13.136.221 ip4:216.52.232.8 ip4:72.23.28.30 ip4:63.91.180.36 ip4:63.91.180.15 ip4:216.154.252.82 ip4:199.255.140.41 ip4:85.133.6.32 -all
  • FhM54L+PcGznPF4qlPqsHVtdKH3aDgUZjEHl1vKmdElWhy+S1xriwT+9d0TMLb2sM9rAWU9O73KZCiJxy6r97A==
  • MS=ms82974778
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