capfirm.com

Valid Email Server

Domain Overview

DNS: โœ“ 2mo ago Checker: โœ“ 2mo ago
capfirm.com
Yes
โœ“ Yes
Outlook
No
No
โš  Yes
No
No

Checked via [email protected] ยท 2026-03-23 21:04:07 UTC ยท โ†บ Refresh

MX Hostnames

  • capfirm-com.mail.protection.outlook.com

MX Priorities

  • capfirm-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 104.17.144.110 (no PTR)
  • 104.17.145.110 (no PTR)
  • 2606:4700::6811:916e
  • 2606:4700::6811:906e

Mail Server IPs

  • 52.101.10.8 โ†ฉ mail-bn1pr04cu00100.inbound.protection.outlook.com
  • 52.101.11.3 โ†ฉ mail-sn1pr0501cu00103.inbound.protection.outlook.com
  • 52.101.41.3 โ†ฉ mail-sj2pr05cu00103.inbound.protection.outlook.com
  • 52.101.9.26 โ†ฉ mail-bl0pr02cu00702.inbound.protection.outlook.com
  • 2a01:111:f403:c902::6 โ†ฉ mail-sj0pr21cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:c902::4 โ†ฉ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 2a01:111:f403:c901::1 โ†ฉ mail-bl2pr04cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c902::2 โ†ฉ mail-sj0pr03cu01602.inbound.protection.outlook.com

SOA Record

Raw SOA charles.ns.cloudflare.com dns.cloudflare.com 2399156899 10000 2400 604800 1800
Primary NS (mname)
charles.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399156899
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

kay.ns.cloudflare.com
charles.ns.cloudflare.com

SPF Record

โœ“ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:149.72.206.97 -all
๐Ÿ“Š DNS lookups: 1/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

โœ— p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; adkim=r; aspf=r;
โš  p=none โ€” monitoring only, no enforcement
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
๐Ÿ“ง Reports โ†’ mailto:[email protected]

DKIM Selectors

โœ“ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
โœ“ Public key: 392 chars (valid)
โœ“ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

6 records
  • google-site-verification=M2nZT_wPN4ya80yU3npnYrwvcYJrP1gffN4wLmPmnpI
  • google-site-verification=qrU6yhXP1xxiMBf3oNMcmzdVsoeEREilGDjDJrGtbrQ
  • notion-domain-verification=lfcsMHcAH3nv0EHo27A3BQ00NM4JY9IuKrKXDXaMRyQ
  • uber-domain-verification=3baf2c8b-a966-455f-b026-1cab38936db9
  • SPFv=spf1 include:spf.protection.outlook.com ip4:149.72.206.97 -all
  • apple-domain-verification=u2fZjPP35ApQw6NN
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