Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nbcot.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 13:04:36 UTC · ↺ Refresh
MX Hostnames
- nbcot-org.mail.protection.outlook.com
MX Priorities
- nbcot-org.mail.protection.outlook.com: 10
A / AAAA Records
- 52.188.70.255 (no PTR)
Mail Server IPs
- 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns41.worldnic.com namehost.worldnic.com 126031109 10800 3600 604800 3600
Primary NS (mname)
ns41.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126031109
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns41.worldnic.com
ns42.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:sendgrid.net include:spf.protection.outlook.com include:e2ma.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
10 records- bmgn9n208gfcklnl32aj18klo2
- dropbox-domain-verification=5qpsj6t0iweg
- google-site-verification=qV9M68ootEfq1j0fUaa8revwriHkSqh6kYGGOtA6Dgs
- MS=ms34996316
- bnnioijp3rjpscp9r9gpak2jdk
- SPFv=spf1 include:sendgrid.net include:spf.protection.outlook.com include:e2ma.net -all
- apple-domain-verification=RGeCSMJluqAaC6oQ
- google-site-verification=zkhWu3w1ZXbu2GBEnm85qQ6mXAcBH2dC_egPHL5bJdg
- google-site-verification=9oL4bo5kXuacWg2am_KXUDxg1T6vHsAXquAgSAr3pE4
- canva-site-verification=06ej9K6xinwn5xTdrHp1CQ
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