Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
niuro.io
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 18:18:05 UTC · ↺ Refresh
MX Hostnames
- niuro-io.mail.protection.outlook.com
MX Priorities
- niuro-io.mail.protection.outlook.com: 0
A / AAAA Records
- 104.18.7.82 (no PTR)
- 104.18.6.82 (no PTR)
- 2606:4700::6812:752
- 2606:4700::6812:652
Mail Server IPs
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
peyton.ns.cloudflare.com dns.cloudflare.com 2400017985 10000 2400 604800 1800
Primary NS (mname)
peyton.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400017985
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
peyton.ns.cloudflare.com
vida.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf.protection.outlook.com include:_spf.mlsend.com include:sendgrid.net include:spf.hubspotemail.net include:123456.spf03.hubspotemail.net -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ 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: 392 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
4 records- SPFv=spf1 a mx include:spf.protection.outlook.com include:_spf.mlsend.com include:sendgrid.net include:spf.hubspotemail.net include:123456.spf03.hubspotemail.net -all
- google-site-verification=h2wIQLAFL-T_YtX1C9igcZMeCsA4-21Mske94V0vUDk
- linkedin-site-verification=de44adc1-6dfc-4a5a-b051-293d62017431
- mailerlite-domain-verification=a9e781c057d5b0db9d3d0c4a8926366787af69ce
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 niuro.io
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits