challengersolutions.com

Valid Email Server
Domain Lookup › challengersolutions.com

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
challengersolutions.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-20 21:29:03 UTC · ↺ Refresh

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MX Hostnames

  • mx03.hornetsecurity.com
  • mx01.hornetsecurity.com
  • mx04.hornetsecurity.com
  • mx02.hornetsecurity.com

MX Priorities

  • mx02.hornetsecurity.com: 20
  • mx03.hornetsecurity.com: 30
  • mx04.hornetsecurity.com: 40
  • mx01.hornetsecurity.com: 10

A / AAAA Records

  • 35.177.145.181 ↩ ec2-35-177-145-181.eu-west-2.compute.amazonaws.com

Mail Server IPs

  • 94.100.136.8 ↩ mx02.hornetsecurity.com
  • 94.100.134.8 ↩ mx03.hornetsecurity.com
  • 94.100.136.7 ↩ mx04.hornetsecurity.com
  • 94.100.132.8 ↩ mx01.hornetsecurity.com

SOA Record

Raw SOA ians1.i-a.co.uk root.i-a.co.uk 2025102201 7200 3600 604800 3600
Primary NS (mname)
ians1.i-a.co.uk
Admin Email (rname)
root@i-a.co.uk
Serial
2025102201
Refresh
7200s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ians3.i-a.co.uk
ians4.i-a.co.uk
ians1.i-a.co.uk
ians2.i-a.co.uk

SPF Record

✓ Strict (-all)
v=spf1 ip4:81.133.162.151 ip4:92.27.18.179 ip4:213.1.214.231 ip4:86.171.237.228 a:remote.challengersolutions.com include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • MS=F79D7D9532F4F87C8C9FEB05A8379932100A7C86
  • SPFv=spf1 ip4:81.133.162.151 ip4:92.27.18.179 ip4:213.1.214.231 ip4:86.171.237.228 a:remote.challengersolutions.com include:spf.protection.outlook.com include:spf.hornetsecurity.com -all
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