calciumusa.com

Valid Email Server
Domain Lookup › calciumusa.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
calciumusa.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-31 15:21:20 UTC · ↺ Refresh

MX Hostnames

  • calciumusa-com.mail.protection.outlook.com
  • mx.calciumusa.com

MX Priorities

  • calciumusa-com.mail.protection.outlook.com: 0
  • mx.calciumusa.com: 30

A / AAAA Records

  • 172.67.152.86 (no PTR)
  • 104.21.1.211 (no PTR)
  • 2606:4700:3033::6815:1d3
  • 2606:4700:3031::ac43:9856

Mail Server IPs

  • 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
  • 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
  • 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
  • 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com

SOA Record

Raw SOA dell.ns.cloudflare.com dns.cloudflare.com 2399940225 10000 2400 604800 1800
Primary NS (mname)
dell.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399940225
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

dell.ns.cloudflare.com
marty.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 mx include:spf.protection.outlook.com include:spfrerouting.xink.io include:spf-us.emailsignatures365.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

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

8 records
  • SPFv=spf1 mx include:spf.protection.outlook.com include:spfrerouting.xink.io include:spf-us.emailsignatures365.com ~all
  • MS=ms17556519
  • ZOOM_verify_L_i5wMT_S_uWYv9SkTwURA
  • apple-domain-verification=NUF9F0HMroVzviAm
  • atlassian-domain-verification=12BnNxCulko+mnKqBkKTkWquGBQcUjCVdOK1Myxg1SFNJjofoo9AU9ycqpRyBy2O
  • atlassian-domain-verification=oBJb1TEnVUrRWgxYUjvMDSQJqAHItrzqgDKuaOG5v5w5tUN2BgFgnDnyj5Sqa0wj
  • google-site-verification=z8vLyZUfbU40LuFZXur7UjwmZMwu5kCumBkeTcrh6YE
  • openai-domain-verification=dv-NVoxuqnVljD3NEixwAvAFyGQ
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