Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
calciumco.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 07:07:47 UTC · ↺ Refresh
MX Hostnames
- calciumco-com.mail.protection.outlook.com
MX Priorities
- calciumco-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.95.38 (no PTR)
- 172.67.142.195 (no PTR)
- 2606:4700:3037::ac43:8ec3
- 2606:4700:3036::6815:5f26
Mail Server IPs
- 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
dell.ns.cloudflare.com dns.cloudflare.com 2399242597 10000 2400 604800 1800
Primary NS (mname)
dell.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399242597
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
marty.ns.cloudflare.com
dell.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:50422760.spf03.hubspotemail.net include:_spf.createsend.com include:spf-us.emailsignatures365.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
11 records- box-domain-verification=8f55270c09b1b9341408a9a596b6319d03b07551c146dd70a040647dfde101c2
- google-site-verification=VnJiVgk9U8wySGFH_L9UIqmi_gil5bi3pdu0YNGAFGU
- google-site-verification=pHk13_vgdlZtmjflf9jMlQjiJ8WB2qhbbyR-MUK5UPM
- jamf-site-verification=Ml4wd5LLP_42BxU0w7L14A
- miro-verification=f6e8515f5368c3479be7030c5e105e5c5786aa8f
- openai-domain-verification=dv-lpYIn4ns0x9kszGS9UTqvlqQ
- SPFv=spf1 include:spf.protection.outlook.com include:50422760.spf03.hubspotemail.net include:_spf.createsend.com include:spf-us.emailsignatures365.com ~all
- ZOOM_verify_MbQRSr2m3ZOUGOAP2w7I36
- anthropic-domain-verification-afckzh=JdKFPCJUzCmcmzyQfziszeBjy
- apple-domain-verification=ZnE6GsZgFlZvsfus
- atlassian-domain-verification=oBJb1TEnVUrRWgxYUjvMDSQJqAHItrzqgDKuaOG5v5w5tUN2BgFgnDnyj5Sqa0wj
Full email verification for calciumco.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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