Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sleepnumber.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 05:40:16 UTC · ↺ Refresh
MX Hostnames
- sleepnumber-com.mail.protection.outlook.com
MX Priorities
- sleepnumber-com.mail.protection.outlook.com: 0
A / AAAA Records
- 13.33.67.100 ↩ server-13-33-67-100.jfk50.r.cloudfront.net
- 13.33.67.81 ↩ server-13-33-67-81.jfk50.r.cloudfront.net
- 13.33.67.23
- 13.33.67.10
Mail Server IPs
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-407.awsdns-50.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-407.awsdns-50.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1772.awsdns-29.co.uk
ns-407.awsdns-50.com
ns-816.awsdns-38.net
ns-1104.awsdns-10.org
SPF Record
✓ Strict (-all)
v=spf1 ip4:63.137.118.177 ip4:63.137.118.178 ip4:12.130.136.83 ip4:12.130.154.17 ip4:63.137.118.69 ip4:149.72.32.137 ip4:208.117.55.133 ip4:208.89.14.209 ip4:129.145.70.179 include:_spf.qualtrics.com include:spf.protection.outlook.com include:authsmtp.com include:_spf.psm.knowbe4.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
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
20 records- amazonses:hUaPgDD406PPFXDoWaIBzkAeque1yXikOCTInsvt2Mc=
- cisco-ci-domain-verification=6c0284bba8366cc3a4b7ab072a5bfba2e22d5fd91c0eb988aeae7a3a724921a8
- have-i-been-pwned-verification=e03c3d0575ee2bea945aa70e0a68795e
- apple-domain-verification=rFnWd4-NjURYVgp7S0Vr7DT1ptElcJfV-bIH1Lgbnr8
- Z2FSi772mKObQ8vuNakQJ44b966lKi41+YVISL3A1WMeYC3kPxpDL3AqpRAidKPcFQexe5rTfs/Lfbgxa0BR4w==
- twilio-domain-verification=3fd705d66aa615b310683ad6b3c09a8f
- apple-domain-verification=ZSMljQZ4DSVkSLoCh-K6lir96H7Yp8T6XqkZxm0qCvk
- google-gws-recovery-domain-verification=38657818
- docker-verification=12998485-07e1-425e-9a62-62cd361a53f8
- contractworksverify=26ThcnaMuY985x
- facebook-domain-verification=sf126ofik95iip3ihjd1nmi823x3vp
- SPFv=spf1 ip4:63.137.118.177 ip4:63.137.118.178 ip4:12.130.136.83 ip4:12.130.154.17 ip4:63.137.118.69 ip4:149.72.32.137 ip4:208.117.55.133 ip4:208.89.14.209 ip4:129.145.70.179 include:_spf.qualtrics.com include:spf.protection.outlook.com include:authsmtp.com include:_spf.psm.knowbe4.com -all
- atlassian-domain-verification=1gFfcLZiBYjUBDVKLA0cacg4tXa1XIFlCSuHBD6eWH8Y7WFmTWWsArOTRvIPeHPR
- as=1302042726
- apple-domain-verification=CUcMymnDqarVeque
- docusign=2b19e68e-9d74-495c-b1ca-cfa655247ce2
- jamf-site-verification=lJtjkZ2pu6VVXG_xmauBLA
- google-site-verification=YeXAHOHvdAXBdaf9iFVJkaV4JSMxVcOg6N9VH6AHy9I
- mixpanel-domain-verify=12330351-a67e-442a-b308-128359cf3e62
- atlassian-sending-domain-verification=515a9075-6f2e-4fa1-9e16-a10b967d2e42
Full email verification for sleepnumber.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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