Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
falterconstruction.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 12:26:24 UTC · ↺ Refresh
MX Hostnames
- falterconstruction-com.mail.protection.outlook.com
MX Priorities
- falterconstruction-com.mail.protection.outlook.com: 1
A / AAAA Records
- 198.185.159.144 (no PTR)
Mail Server IPs
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns51.1and1.com hostmaster.1and1.com 2014101809 28800 7200 604800 300
Primary NS (mname)
ns51.1and1.com
Admin Email (rname)
hostmaster@1and1.com
Serial
2014101809
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns52.1and1.com
ns51.1and1.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ 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
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:spf.protection.outlook.com -all
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