Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sdrconstruction.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 04:37:21 UTC · ↺ Refresh
MX Hostnames
- sdrconstruction-com.mail.protection.outlook.com
MX Priorities
- sdrconstruction-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.70.101 (no PTR)
- 172.67.222.215 (no PTR)
- 2606:4700:3037::ac43:ded7
- 2606:4700:3030::6815:4665
Mail Server IPs
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
- 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
SOA Record
Raw SOA
demi.ns.cloudflare.com dns.cloudflare.com 2398802095 10000 2400 604800 1800
Primary NS (mname)
demi.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398802095
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
trey.ns.cloudflare.com
demi.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
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
3 records- NETORGFT8398774.onmicrosoft.com
- SPFv=spf1 include:spf.protection.outlook.com -all
- v=verifydomain MS=7302164
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