Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
zerorezcolumbia.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-06-19 15:04:14 UTC · ↺ Refresh
MX Hostnames
- zerorezcolumbia-com.mail.protection.outlook.com
MX Priorities
- zerorezcolumbia-com.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.169.171 (no PTR)
- 104.21.47.7 (no PTR)
- 2606:4700:3036::6815:2f07
- 2606:4700:3034::ac43:a9ab
Mail Server IPs
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
jim.ns.cloudflare.com dns.cloudflare.com 2406217798 10000 2400 604800 1800
Primary NS (mname)
jim.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2406217798
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
pat.ns.cloudflare.com
jim.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.createsend.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; fo=1; pct=100; adkim=r; aspf=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
10 records- google-site-verification=7dkRoKUvgnC3pSrf_957jWRIelZ7NbJo41S93ovsz_c
- google-site-verification=KFc-flYae3Rv2M_3Yp8TtGxOAFQiAYTumEjbkgbjarA
- google-site-verification=PdcxsSjayLz0P-20g5B9KDKLfc9wqd29N3Hbiw0zWfc
- google-site-verification=ZNJNaaIcJ-7x-g2GvnQyrjTOPXSVtI9xFYqM-tjM1Y8
- google-site-verification=mpPQnGcXeLl-8HEK_68KbLBsxxSOmX_PFaD__p-Q3lM
- google-site-verification=oxADyGYRmv625vUKTi00c0_5Cp13AubP7RNgEcAQc4k
- SPFv=spf1 include:spf.protection.outlook.com include:_spf.createsend.com -all
- MS=ms42910471
- MS=ms76495170
- facebook-domain-verification=rnkse5fzy5nu6ifkf5w68zi1spa75u
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