Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
extremitycare.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 17:28:32 UTC · ↺ Refresh
MX Hostnames
- extremitycare-com.mail.protection.outlook.com
MX Priorities
- extremitycare-com.mail.protection.outlook.com: 10
A / AAAA Records
- 128.0.64.192 (no PTR)
- 128.0.64.195 (no PTR)
Mail Server IPs
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns11.worldnic.com namehost.worldnic.com 126011413 10800 3600 604800 3600
Primary NS (mname)
ns11.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126011413
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns11.worldnic.com
ns12.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:43tnb89ybx.powerspf.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=0; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 0% of failing messages only
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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- atlassian-domain-verification=kungYeBK3JSrJChuOPeLomYc8Lf9tv6wSNiulxI8vfbZTK8n5mnops8vT1Nu7Bqh
- MS=ms78379104
- knowbe4-site-verification=3b5a183b231404d7ba81ef8da279d57a
- apple-domain-verification=cXOgfyfSBaxv2wqg
- google-site-verification=Oms06p015rkMdGg33DMdw7QbMrU6-k9WhRVcLZpho7A
- SPFv=spf1 include:43tnb89ybx.powerspf.com -all
Full email verification for extremitycare.com
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