Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ndss.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 18:16:18 UTC · ↺ Refresh
MX Hostnames
- ndss-org.mail.protection.outlook.com
MX Priorities
- ndss-org.mail.protection.outlook.com: 0
A / AAAA Records
- 23.185.0.2 (no PTR)
- 2620:12a:8001::2 (no PTR)
- 2620:12a:8000::2
Mail Server IPs
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
SOA Record
Raw SOA
jim.ns.cloudflare.com dns.cloudflare.com 2398302435 10000 2400 604800 1800
Primary NS (mname)
jim.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398302435
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
jim.ns.cloudflare.com
sima.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.createsend.com include:spf.protection.outlook.com include:spf.mandrillapp.com ip4:50.74.59.66 ip4:23.253.32.145 ip4:23.253.213.149 ip4:162.242.166.107 include:servers.mcsv.net include:spf.crm.virtuoussoftware.com include:sendgrid.net include:amazonses.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 include:_spf.createsend.com include:spf.protection.outlook.com include:spf.mandrillapp.com ip4:50.74.59.66 ip4:23.253.32.145 ip4:23.253.213.149 ip4:162.242.166.107 include:servers.mcsv.net include:spf.crm.virtuoussoftware.com include:sendgrid.net include:amazonses.com -all
- MS=ms85728141
- apple-domain-verification=sptsyAfy4v3zhX1Q
Full email verification for ndss.org
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