Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
pennusa.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 16:31:12 UTC · ↺ Refresh
MX Hostnames
- pennusa-com.mail.protection.outlook.com
MX Priorities
- pennusa-com.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.21 (no PTR)
- 141.193.213.20 (no PTR)
Mail Server IPs
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
SOA Record
Raw SOA
ns23.domaincontrol.com dns.jomax.net 2025120500 28800 7200 604800 600
Primary NS (mname)
ns23.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025120500
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns24.domaincontrol.com
ns23.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:4.39.65.128/29 ip4:100.11.32.186/29 ip4:50.233.253.32/29 ip4:96.93.135.224/29 ip4:75.146.214.0/24 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
3 records- sending_domain1116413=9634feac3c41ac603a9c61a6e1dd34ecddeb8a2722d8a2b1dee5cb9aa2a71092
- knowbe4-site-verification=c5222cc3aa8b6b6b51addbfe5aabcc5f
- SPFv=spf1 ip4:4.39.65.128/29 ip4:100.11.32.186/29 ip4:50.233.253.32/29 ip4:96.93.135.224/29 ip4:75.146.214.0/24 include:spf.protection.outlook.com -all
Full email verification for pennusa.com
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