Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
blackdiamondgroup.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 03:11:01 UTC · ↺ Refresh
MX Hostnames
- blackdiamondgroup-com.mail.protection.outlook.com
MX Priorities
- blackdiamondgroup-com.mail.protection.outlook.com: 0
A / AAAA Records
- 69.10.157.53 (no PTR)
Mail Server IPs
- 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 52.101.190.2 ↩ mail-yt3pr01cu00602.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:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c942:: ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
SOA Record
Raw SOA
ns67.domaincontrol.com dns.jomax.net 2026022301 28800 7200 604800 600
Primary NS (mname)
ns67.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026022301
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns67.domaincontrol.com
ns68.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf-westus.emailsignatures365.com include:spf.diligent.com include:_spf-dc8.sapsf.com include:_spf.salesforce.com include:24043598.spf06.hubspotemail.net include:_spf.psm.knowbe4.com ip4:208.98.196.192/28 ip4:209.89.138.192/28 ip4:184.71.251.210 ip4:20.1.128.197 ip4:20.10.24.226 ip4:20.96.12.43 ip4:20.1.130.13 A MX -all
📊 DNS lookups: 9/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
7 records- U/UlDnlkNzq7P1s84syNp7q2nj8MQs9+zupXf5XMVyyOvEfMAXBxkoUpz5ZSsuwXb+eNBCqk2m3+2geMHBqeTg==
- 6lganclrbg8svinjudu0ilg3fv
- s8Z0Fpk/cLKs/PL4A2+ceTRhT5FfoIHM3uXYVANt+vaueGCXQ3OxbNNO1ZN+Ke5avBEzOGT4VBrIDcQ0S/S04g==
- atlassian-domain-verification=Gl3f0K4vEkqCgJHp4CKjp/2jHpHgFs87EKqxdz8f6/mlq4yF0qdo9/gR/TSb1VM7
- knowbe4-site-verification=61895c5d143ec5f1987f6031fde76154
- SPFv=spf1 include:spf.protection.outlook.com include:spf-westus.emailsignatures365.com include:spf.diligent.com include:_spf-dc8.sapsf.com include:_spf.salesforce.com include:24043598.spf06.hubspotemail.net include:_spf.psm.knowbe4.com ip4:208.98.196.192/28 ip4:209.89.138.192/28 ip4:184.71.251.210 ip4:20.1.128.197 ip4:20.10.24.226 ip4:20.96.12.43 ip4:20.1.130.13 A MX -all
- 3hoe5skqcqgm53rke3prnvqtp6
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 blackdiamondgroup.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits