Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
buildingblocksforbusiness.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 13:27:42 UTC · ↺ Refresh
MX Hostnames
- buildingblocksforbusiness-com.mail.protection.outlook.com
MX Priorities
- buildingblocksforbusiness-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.18.24.250 (no PTR)
- 104.18.25.250 (no PTR)
- 2606:4700::6812:18fa
- 2606:4700::6812:19fa
Mail Server IPs
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
cecelia.ns.cloudflare.com dns.cloudflare.com 2398152604 10000 2400 604800 1800
Primary NS (mname)
cecelia.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398152604
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
chad.ns.cloudflare.com
cecelia.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:108.163.222.234 include:spf.protection.outlook.com ip4:108.163.222.234 +a +mx +ip4:199.167.202.73 +ip4:199.167.201.253 ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; adkim=s; aspf=s
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._domainkey
✓ Public key: 216 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
6 records- acr
- SPFv=spf1 ip4:108.163.222.234 include:spf.protection.outlook.com ip4:108.163.222.234 +a +mx +ip4:199.167.202.73 +ip4:199.167.201.253 ~all
- MS=ms96503358
- _globalsign-domain-verification=-BcbL74FBEYD9ewh4p8PpxNLw2-5_vkCx1Qq7nTu0Y
- _globalsign-domain-verification=9enicvWaKUViWOZxfpasodlY21QCUFpb02PFhojAcg
- _globalsign-domain-verification=iz6zftMfiPLfLfbN0SwatJNB3jGkJmNLZtpFPv5Q9j
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