Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
build4g.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 15:21:40 UTC · ↺ Refresh
MX Hostnames
- build4g-com.mail.protection.outlook.com
MX Priorities
- build4g-com.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.10 (no PTR)
Mail Server IPs
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
SOA Record
Raw SOA
ns69.domaincontrol.com dns.jomax.net 2026031300 28800 7200 604800 600
Primary NS (mname)
ns69.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026031300
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns70.domaincontrol.com
ns69.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- apple-domain-verification=JJyxAlMfUvJdSlLq
- SPFv=spf1 include:spf.protection.outlook.com -all
- google-site-verification=OWUdeZtCmipxn_C__q0vpuSEK4olQkxSntIc8--hM2c
Full email verification for build4g.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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