Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
penn-co.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 15:48:26 UTC · ↺ Refresh
MX Hostnames
- pennco-com01b.mail.protection.outlook.com
MX Priorities
- pennco-com01b.mail.protection.outlook.com: 0
A / AAAA Records
- 198.50.158.71 ↩ rathtrevor.wpcloud.ca
Mail Server IPs
- 52.101.190.1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
- 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
- 2a01:111:f403:c942::1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
- 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
ns5.worldnic.com namehost.worldnic.com 126030302 10800 3600 604800 3600
Primary NS (mname)
ns5.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126030302
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns5.worldnic.com
ns6.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.bigcommerce.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; ruf=mailto:[email protected]; fo=1; aspf=s; adkim=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
7 records- google-site-verification=geGs9kkWw519H6BVSbwmzB4f5dT5OEwwzuVuhZpwBhc
- openai-domain-verification=dv-mlfTuNQgdNPhL9SKhZLdJIwU
- apple-domain-verification=cvrfNQrWHVrzKYxq
- cGVubmNv
- autodesk-domain-verification=tzTpFY5Kk8t59BXkkY1L
- SPFv=spf1 include:spf.protection.outlook.com include:_spf.bigcommerce.com -all
- teamviewer-sso-verification=7826eff39e2c405a8100804e9d266b64
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