airunderwriting.com

Valid Email Server
Domain Lookup › airunderwriting.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
airunderwriting.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-17 21:57:17 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 109.74.246.18 ↩ graphene.cultrix.co.uk

Mail Server IPs

  • 195.130.217.241 ↩ eu-smtp-inbound-2.mimecast.com
  • 91.220.42.201 ↩ eu-smtp-inbound-2.mimecast.com
  • 195.130.217.201 ↩ eu-smtp-inbound-2.mimecast.com
  • 91.220.42.211 ↩ eu-smtp-inbound-2.mimecast.com
  • 195.130.217.211 ↩ eu-smtp-inbound-2.mimecast.com
  • 91.220.42.241 ↩ eu-smtp-inbound-1.mimecast.com

SOA Record

Raw SOA a1-120.akam.net hostmaster.airunderwriting.com 2025111556 3600 600 604800 300
Primary NS (mname)
a1-120.akam.net
Admin Email (rname)
hostmaster@airunderwriting.com
Serial
2025111556
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

a9-66.akam.net
a1-120.akam.net
a6-66.akam.net
a13-65.akam.net
a16-65.akam.net
a22-65.akam.net

SPF Record

✓ Soft Fail (~all)
v=spf1 +ip4:109.74.246.24 +ip4:109.74.246.18 +ip4:81.149.187.120 +ip4:109.74.246.10 +ip4:109.74.246.4 +include:sendgrid.net include:_netblocks.mimecast.com include:spf.protection.outlook.com ~allMS=ms35998589MS=ms97386086MS=ms67213606MS=ms67213606knowbe4-site-verification=4b9139e7ca4141e06b4588b675dc1a80v=spf1 +a +mx +ip4:109.74.246.24 +ip4:109.74.246.18 ~allknowbe4-site-verification=4b9139e7ca4141e06b4588b675dc1a80
📊 DNS lookups: 5/10

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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

1 record
  • SPFv=spf1 +ip4:109.74.246.24 +ip4:109.74.246.18 +ip4:81.149.187.120 +ip4:109.74.246.10 +ip4:109.74.246.4 +include:sendgrid.net include:_netblocks.mimecast.com include:spf.protection.outlook.com ~allMS=ms35998589MS=ms97386086MS=ms67213606MS=ms67213606knowbe4-site-verification=4b9139e7ca4141e06b4588b675dc1a80v=spf1 +a +mx +ip4:109.74.246.24 +ip4:109.74.246.18 ~allknowbe4-site-verification=4b9139e7ca4141e06b4588b675dc1a80
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