Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
langstonconstruction.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 07:14:49 UTC · ↺ Refresh
MX Hostnames
- langstonconstruction-com.mail.protection.outlook.com
MX Priorities
- langstonconstruction-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.92.129 (no PTR)
- 172.67.194.34 (no PTR)
- 2606:4700:3033::ac43:c222
- 2606:4700:3036::6815:5c81
Mail Server IPs
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
anita.ns.cloudflare.com dns.cloudflare.com 2398930508 10000 2400 604800 1800
Primary NS (mname)
anita.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398930508
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
karl.ns.cloudflare.com
anita.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
selector2._domainkey
⚠ Public key (p=) missing in DKIM record for selector selector2.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=ms60365860
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