Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kingstonhealthcare.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 06:30:38 UTC · ↺ Refresh
MX Hostnames
- kingstonhealthcare-com.mail.protection.outlook.com
MX Priorities
- kingstonhealthcare-com.mail.protection.outlook.com: 5
A / AAAA Records
- 149.56.169.178 ↩ ip178.ip-149-56-169.net
Mail Server IPs
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
dbru.br.ns.els-gms.att.net rm-hostmaster.ems.att.com 115 86400 10000 604800 86400
Primary NS (mname)
dbru.br.ns.els-gms.att.net
Admin Email (rname)
rm-hostmaster@ems.att.com
Serial
115
Refresh
86400s
Retry
10000s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
dbru.br.ns.els-gms.att.net
dmtu.mt.ns.els-gms.att.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf1.kingstonhealthcare.com include:spf2.kingstonhealthcare.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; fo=1; rua=mailto:[email protected];ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → 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
6 records- amazon-business-verification=36c52e4ac657acf7e660492fd2a3bcde726c6c216d07a2958b7d40e17149a17e
- MS=ms18626645
- AuW/eP7j4dbqv+3ShFJlQsRubMBgOkaw36YaU+K4nsmOIftB+xutESyTmHpO5Cd9fAB1AEkglfdacEBe5/DkNw==
- SPFv=spf1 include:spf1.kingstonhealthcare.com include:spf2.kingstonhealthcare.com -all
- bw=0huIphlFM3MkRs85HRPmVbULGY8nhCunWC20lJ73C2sr
- apple-domain-verification=EwlEoyXdZ7C17aas
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