Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
niederhoffer.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 21:26:01 UTC · ↺ Refresh
MX Hostnames
- niederhoffer-com.mail.protection.outlook.com
MX Priorities
- niederhoffer-com.mail.protection.outlook.com: 10
A / AAAA Records
- 172.67.71.186 (no PTR)
- 104.26.14.145 (no PTR)
- 104.26.15.145
- 2606:4700:20::681a:f91
- 2606:4700:20::681a:e91
- 2606:4700:20::ac43:47ba
Mail Server IPs
- 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
elma.ns.cloudflare.com dns.cloudflare.com 2397527199 10000 2400 604800 1800
Primary NS (mname)
elma.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397527199
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
james.ns.cloudflare.com
elma.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:67.225.186.120 ip4:38.32.103.80/29 ip4:38.117.151.24/29 ip4:149.97.148.146/32 ip4:32.132.226.206/32 ip4:68.233.183.166/32 include:spf.usa.net include:clientspf.backstopsolutions.com include:spf.protection.outlook.com include:spfa.cpmails.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; adkim=r; aspf=r; pct=10
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 10% of failing messages only
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- MS=ms12275729
- MS=ms28455600
- MS=ms97254215
- google-site-verification=WjRqH8DoTdrtVk5B7B1lczA58ENO_AA3cSLyuCeWuJ0
- mandrill_verify.PA_IGsagZNM7QL4EUudAoA
- SPFv=spf1 ip4:67.225.186.120 ip4:38.32.103.80/29 ip4:38.117.151.24/29 ip4:149.97.148.146/32 ip4:32.132.226.206/32 ip4:68.233.183.166/32 include:spf.usa.net include:clientspf.backstopsolutions.com include:spf.protection.outlook.com include:spfa.cpmails.com -all
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