firstbook.org

Valid Email Server
Domain Lookup › firstbook.org
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
firstbook.org
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-20 21:58:18 UTC · ↺ Refresh

MX Hostnames

  • usa.mx3.mailanyone.net
  • usa.mx2.mx25.net
  • usa.mx1.mailanyone.net
  • usa.mx4.mx25.net

MX Priorities

No priority data.

A / AAAA Records

  • 104.197.190.110

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

ns-778.awsdns-33.net
ns-1362.awsdns-42.org
ns-1744.awsdns-26.co.uk
ns-191.awsdns-23.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com mx include:et._spf.pardot.com include:u15772834.wl085.sendgrid.net include:amazonaws.com ip4:166.78.70.233 ip4:192.254.126.8 ip4:192.254.124.90 ip4:192.254.123.116 ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; pct=100; adkim=s; aspf=s; sp=none; fo=1; ri=300; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict · DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✓ 3 found
selector1._domainkey
selector2._domainkey
s1._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

9 records
  • google-site-verification=xcRT72m-6xEKRvskaVwrZkGzEwRXQ5i7agYo1tw_hJM
  • miro-verification=f6d92b830e5d0956ba6e2faebada62ac9f92b719
  • pardot_297582_*=064787626c74f8fb5184c22293d2d4333a804a86e0ac585e486d96411cf6443c
  • SPFv=spf1 include:spf.protection.outlook.com mx include:et._spf.pardot.com include:u15772834.wl085.sendgrid.net include:amazonaws.com ip4:166.78.70.233 ip4:192.254.126.8 ip4:192.254.124.90 ip4:192.254.123.116 ~all
  • FKmu8+CVyXBvR7AFBhUgy75xAr3ZFYmIcDViDUxgzdrOh0WIglpju4CQQbPRdk6XarOcNiEKssFaygFeTn3mpA==
  • MS=ms42320617
  • atlassian-domain-verification=a5U3s0KmfNPaqUG4Ddkw770CUp0Ml9kkaD2WupXQ9qQ7Dqg5ANK/Yer2oO2wP7Hp
  • facebook-domain-verification=0bjg3ersknpyos3wzjc4zh2rpozd23
  • google-gws-recovery-domain-verification=52258705
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