Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
keystoneinsgrp.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 11:57:38 UTC · ↺ Refresh
MX Hostnames
- d6064a.ess.barracudanetworks.com
- d6064b.ess.barracudanetworks.com
MX Priorities
- d6064b.ess.barracudanetworks.com: 10
- d6064a.ess.barracudanetworks.com: 10
A / AAAA Records
- 141.193.213.21 (no PTR)
- 141.193.213.20 (no PTR)
Mail Server IPs
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns-1533.awsdns-63.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1533.awsdns-63.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-868.awsdns-44.net
ns-1533.awsdns-63.org
ns-1932.awsdns-49.co.uk
ns-84.awsdns-10.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf1.keystoneinsgrp.com include:spf2.keystoneinsgrp.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
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
5 records- MS=ms91371007
- SPFv=spf1 include:spf1.keystoneinsgrp.com include:spf2.keystoneinsgrp.com -all
- zapier-domain-verification-challenge=0f31c525-ed2f-40df-b810-efad473112f5
- BYNIq62GZlZOcwwXIXzOg92NIdeTbK10IFjsAYWlYEykTuSR5r9JS5rSgRyYgfDc6WtpqckJVCPyHO675P0vHA==
- Foxit-domain-verification=517dfe429c2cf119087c20b125b330d3
Full email verification for keystoneinsgrp.com
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