columbiaclinic.us

Valid Email Server
Domain Lookup › columbiaclinic.us

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
columbiaclinic.us
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-22 23:53:34 UTC · ↺ Refresh

MX Hostnames

  • alt2.aspmx.l.google.com
  • aspmx.l.google.com
  • alt3.aspmx.l.google.com
  • alt1.aspmx.l.google.com
  • alt4.aspmx.l.google.com

MX Priorities

  • alt4.aspmx.l.google.com: 10
  • alt1.aspmx.l.google.com: 5
  • alt2.aspmx.l.google.com: 5
  • aspmx.l.google.com: 1
  • alt3.aspmx.l.google.com: 10

A / AAAA Records

  • 172.67.181.147
  • 104.21.18.102
  • 2606:4700:3031::6815:1266
  • 2606:4700:3031::ac43:b593

Mail Server IPs

  • 173.194.76.26 ↩ ws-in-f26.1e100.net
  • 2a00:1450:400c:c00::1b ↩ ws-in-f27.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 142.251.179.27 ↩ pd-in-f27.1e100.net
  • 2607:f8b0:4004:c21::1a ↩ pe-in-f26.1e100.net
  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net

SOA Record

Raw SOA mario.ns.cloudflare.com dns.cloudflare.com 2399588326 10000 2400 604800 1800
Primary NS (mname)
mario.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399588326
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

sharon.ns.cloudflare.com
mario.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:160.153.133.84/18 ?all
📊 DNS lookups: 0/10
? Neutral (?all) — no enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No 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

3 records
  • rro4amhdpbol0csnd7tl9eja4s
  • SPFv=spf1 ip4:160.153.133.84/18 ?all
  • bk01fe1k7sboe6lg0b0gumrdgi
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