Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
niblockhomes.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 19:52:06 UTC · ↺ Refresh
MX Hostnames
- niblockhomes-com.mail.protection.outlook.com
MX Priorities
- niblockhomes-com.mail.protection.outlook.com: 10
A / AAAA Records
- 151.101.1.91 (no PTR)
- 151.101.129.91 (no PTR)
- 151.101.65.91
- 151.101.193.91
Mail Server IPs
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
- 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
- 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
SOA Record
Raw SOA
duke.ns.cloudflare.com dns.cloudflare.com 2398959088 10000 2400 604800 1800
Primary NS (mname)
duke.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398959088
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
serena.ns.cloudflare.com
duke.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:lassocrm.com include:amazonses.com include:spf.builditsystems.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; ri=86400; fo=1; pct=100
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- bw=UUN3Z91AK+EU2LIX+5hV7B4bZqapEGmy64GZEyfLthK+
- docusign=50772b16-ddc1-4fe5-b333-d2b8a2e474a0
- facebook-domain-verification=qg6mmbqjh9bhrbrly4tf7gzm2j3116
- SPFv=spf1 include:spf.protection.outlook.com include:lassocrm.com include:amazonses.com include:spf.builditsystems.net -all
- MS=ms40107487
- TAILSCALE-yHQyMOoFm0wBzmnzsXci
- bw=ApMCUKuieYHUWg5XqtIDoTtvEPZEjuNRtEWjYPI0rWC9
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