Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
penlumber.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 13:44:47 UTC · ↺ Refresh
MX Hostnames
- penlumber-com.mail.protection.outlook.com
MX Priorities
- penlumber-com.mail.protection.outlook.com: 0
A / AAAA Records
- 67.227.188.44 ↩ web1.powerpoint3.com
Mail Server IPs
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
ns5.secureserver.net dns.jomax.net 2025050500 28800 7200 604800 3600
Primary NS (mname)
ns5.secureserver.net
Admin Email (rname)
dns@jomax.net
Serial
2025050500
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns6.secureserver.net
ns5.secureserver.net
SPF Record
✓ Strict (-all)
v=spf1 +ip4:67.227.188.44 +include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._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
2 records- SPFv=spf1 +ip4:67.227.188.44 +include:spf.protection.outlook.com -all
- v=verifydomain MS=2055582
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