rainbowinvestigations.com

Valid Email Server
Domain Lookup › rainbowinvestigations.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
rainbowinvestigations.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-30 03:26:01 UTC · ↺ Refresh

MX Hostnames

  • rainbowinvestigations-com.mail.protection.outlook.com

MX Priorities

  • rainbowinvestigations-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 104.21.30.74 (no PTR)
  • 172.67.172.62 (no PTR)
  • 2606:4700:3030::ac43:ac3e
  • 2606:4700:3032::6815:1e4a

Mail Server IPs

  • 52.101.190.2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
  • 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
  • 52.101.192.0 ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
  • 52.101.190.1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
  • 2a01:111:f403:c942::1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
  • 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
  • 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
  • 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com

SOA Record

Raw SOA kay.ns.cloudflare.com dns.cloudflare.com 2398483523 10000 2400 604800 1800
Primary NS (mname)
kay.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398483523
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

woz.ns.cloudflare.com
kay.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:mailgun.org ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • SPFv=spf1 include:spf.protection.outlook.com include:mailgun.org ~all
  • NETORGFT12530120.onmicrosoft.com
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 rainbowinvestigations.com

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits