Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ncbon.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 08:17:19 UTC · ↺ Refresh
MX Hostnames
- ncbon-com.mail.protection.outlook.com
MX Priorities
- ncbon-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.72.113 (no PTR)
- 104.26.8.107 (no PTR)
- 104.26.9.107
- 2606:4700:20::ac43:4871
- 2606:4700:20::681a:96b
- 2606:4700:20::681a:86b
Mail Server IPs
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
- 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
cris.ns.cloudflare.com dns.cloudflare.com 2396361425 10000 2400 604800 1800
Primary NS (mname)
cris.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396361425
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
kira.ns.cloudflare.com
cris.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx include:spfus.rocketseed.com include:sendgrid.net include:spf.protection.outlook.com include:_spf.intacct.com include:mail.zendesk.com include:spf.mandrillapp.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; pct=100; ri=600; adkim=r; aspf=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
8 records- apple-domain-verification=D2LsB54qtZNyA7UJ
- asv=d1d7746b7b5ccfe6fa5053495f2b8d7b
- fdbqe3ml1ojfcmbbrt6bkv48uj
- SPFv=spf1 mx include:spfus.rocketseed.com include:sendgrid.net include:spf.protection.outlook.com include:_spf.intacct.com include:mail.zendesk.com include:spf.mandrillapp.com -all
- 2e3voprs5nvr9b33al5uoo6r9p
- 5e4cr8mvakgg3k0ivlsbjgs084
- ad4gb49kso5apol8mlk28koanf
- amazonses:4D5jaBK+kh0CQzaBU4C1WBFL/Ju/xZgIGzMbmvsqHCw=
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for ncbon.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits