Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hendersonbuilding.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 21:00:38 UTC · ↺ Refresh
MX Hostnames
- hendersonbuilding-com.mail.protection.outlook.com
MX Priorities
- hendersonbuilding-com.mail.protection.outlook.com: 5
A / AAAA Records
- 141.193.213.21 (no PTR)
- 141.193.213.20 (no PTR)
Mail Server IPs
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns11.constellix.com dns.constellix.com 2015010128 43200 3600 1209600 180
Primary NS (mname)
ns11.constellix.com
Admin Email (rname)
dns@constellix.com
Serial
2015010128
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns21.constellix.com
ns31.constellix.com
ns41.constellix.net
ns51.constellix.net
ns61.constellix.net
ns11.constellix.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:12.163.106.41 include:servers.mcsv.net include:spf.protection.outlook.com include:dayforcehcm.com include:spf.us.exclaimer.net -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: quarantine
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
10 records- T/AYwjTbtrfARRJwYW6G1Te/y8Jdi+C7KYOS3zDEo3oCLpz9cv/eUk7y+7Uy1bSn3tbA1W84002DfkWCRfQzLQ==
- cisco-ci-domain-verification=74397e0663dec7a1de75bd7c517a024bb783b7cf8ac1f2f9eed644459c98aa54
- SPFv=spf1 mx ip4:12.163.106.41 include:servers.mcsv.net include:spf.protection.outlook.com include:dayforcehcm.com include:spf.us.exclaimer.net -all
- 855l1o1tn2r8ea9pu1vm6vpatl
- apple-domain-verification=cHwnVACDtuvnAAg9
- dropbox-domain-verification=suljgbe10gmw
- miro-verification=aff028511c1277bc6ed1ccff6861c8ac6c5886a5
- anthropic-domain-verification-d68h12=EB3FsQGpReBsDSHkioDVPXPUV
- docusign=0c155b23-9572-44e3-b93f-1290473b7718
- MS=ms38322084
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