yellowhawk.org

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
yellowhawk.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-23 15:06:59 UTC · ↺ Refresh

MX Hostnames

  • yellowhawk-org.mail.protection.outlook.com

MX Priorities

  • yellowhawk-org.mail.protection.outlook.com: 0

A / AAAA Records

  • 149.28.41.219 ↩ 149.28.41.219.vultrusercontent.com

Mail Server IPs

  • 52.101.9.19 ↩ mail-blapr09cu00103.inbound.protection.outlook.com
  • 52.101.11.12 ↩ mail-sa9pr09cu00104.inbound.protection.outlook.com
  • 52.101.8.52 ↩ mail-ds0pr09cu00104.inbound.protection.outlook.com
  • 52.101.8.50 ↩ mail-dm6pr09cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:f900::1 ↩ mail-blapr09cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f904::1 ↩ mail-ds0pr09cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f904:: ↩ mail-dm6pr09cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f90e::1 ↩ mail-sa9pr09cu00101.inbound.protection.outlook.com

SOA Record

Raw SOA ns33.domaincontrol.com dns.jomax.net 2025110500 28800 7200 604800 600
Primary NS (mname)
ns33.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025110500
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns33.domaincontrol.com
ns34.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 mx:mail.yellowhawk.org ip4:198.237.64.78 ip4:67.231.147.142 ip4:141.193.195.252 ip4:141.193.195.243 ip4:68.116.31.195 ip4:141.193.195.252 ip4:198.237.72.78 ip4:67.231.155.142 ip4:66.97.230.6 include:spf1.ascentis.com include:spf2.ascentis.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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
  • google-site-verification=RZJzOZKjtoL1m5Rita1MvSaUmvdnMjS8Ga13oNulOKQ
  • SPFv=spf1 mx:mail.yellowhawk.org ip4:198.237.64.78 ip4:67.231.147.142 ip4:141.193.195.252 ip4:141.193.195.243 ip4:68.116.31.195 ip4:141.193.195.252 ip4:198.237.72.78 ip4:67.231.155.142 ip4:66.97.230.6 include:spf1.ascentis.com include:spf2.ascentis.com include:spf.protection.outlook.com -all
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 yellowhawk.org

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

No credit card required
Get 1,000 Free Credits