coolnerdsmarketing.com

Valid Email Server
Domain Lookup › coolnerdsmarketing.com

Domain Overview

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

Checked via [email protected] · 2026-03-19 01:11:53 UTC · ↺ Refresh

MX Hostnames

  • coolnerdsmarketing-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 172.66.43.141 (no PTR)
  • 172.66.40.115 (no PTR)
  • 2606:4700:3108::ac42:2873
  • 2606:4700:3108::ac42:2b8d

Mail Server IPs

  • 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
  • 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
  • 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
  • 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
  • 2a01:111:f403:f903:: (no PTR)
  • 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com

SOA Record

Raw SOA ali.ns.cloudflare.com dns.cloudflare.com 2396859191 10000 2400 604800 1800
Primary NS (mname)
ali.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396859191
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

burt.ns.cloudflare.com
ali.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:_spf.smtp.com ~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

3 records
  • google-site-verification=VmQDUUs3GSUm7UtUsiv34epnqgIDBSVZVvcLxMc8YWg
  • SPFv=spf1 include:spf.protection.outlook.com include:_spf.smtp.com ~all
  • v=verifydomain MS=8762101
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 coolnerdsmarketing.com

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

No credit card required
Get 1,000 Free Credits