Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
marriottconstruction.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 07:53:10 UTC · ↺ Refresh
MX Hostnames
- marriottconstruction-com.mail.protection.outlook.com
MX Priorities
- marriottconstruction-com.mail.protection.outlook.com: 0
A / AAAA Records
- 199.16.173.143 (no PTR)
- 199.16.172.159 (no PTR)
Mail Server IPs
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
SOA Record
Raw SOA
darl.ns.cloudflare.com dns.cloudflare.com 2397069010 10000 2400 604800 1800
Primary NS (mname)
darl.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397069010
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
darl.ns.cloudflare.com
sharon.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:130.211.200.233 ip4:75.100.117.146 ip4:98.103.198.106/29 include:spf.protection.outlook.com include:sendgrid.net include:mailgun.org include:_spf.psm.knowbe4.com a -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected];ruf=mailto:[email protected];fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
mail._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
4 records- 4a757afb6d000e2420537543db13f40e
- BA02568847
- brevo-code:59bfffac396c999d91e73556982c8b73
- SPFv=spf1 ip4:130.211.200.233 ip4:75.100.117.146 ip4:98.103.198.106/29 include:spf.protection.outlook.com include:sendgrid.net include:mailgun.org include:_spf.psm.knowbe4.com a -all
Full email verification for marriottconstruction.com
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