Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
columbiahospitality.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 18:38:45 UTC · ↺ Refresh
MX Hostnames
- columbiahospitality-com.mail.protection.outlook.com
MX Priorities
- columbiahospitality-com.mail.protection.outlook.com: 0
A / AAAA Records
- 38.246.122.41 ↩ cdn.colhosp.com
Mail Server IPs
- 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
carl.ns.cloudflare.com dns.cloudflare.com 2399859025 10000 2400 604800 1800
Primary NS (mname)
carl.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399859025
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
carl.ns.cloudflare.com
nucum.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:_u.columbiahospitality.com._spf.dmarclh.com include:spf.zipcon.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; adkim=s; aspf=s; fo=0;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
k1._domainkey
s1._domainkey
s2._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
5 records- apple-domain-verification=WmC4uZFrukRH0VuP
- atlassian-domain-verification=yjSBxOTZujj8HQu1GEz4l2ysq0pm8STGoy3Raarzu2ehQWA0GieytyrTdAENqgbl
- duo_sso_verification=EwT6mXKGGwxo1MN1eLHCVw8OvYboa0KGtYXq84lZOIZmCMH2o00SCrsOmrOiJ4WQ
- google-site-verification=MJ6N2sBtzV_CXYWIENLKTzaEg89CpBWtUtOg4WB5dJg
- SPFv=spf1 include:_u.columbiahospitality.com._spf.dmarclh.com include:spf.zipcon.net -all
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