brownbook.net

Valid Email Server
Domain Lookup › brownbook.net

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
brownbook.net
Yes
✓ Yes
Mailgun
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-29 19:57:15 UTC · ↺ Refresh

MX Hostnames

  • aspmx.l.google.com
  • mxb.mailgun.org
  • alt1.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • mxa.mailgun.org
  • aspmx2.googlemail.com
  • aspmx3.googlemail.com
  • mx.hover.com.cust.hostedemail.com

MX Priorities

  • mx.hover.com.cust.hostedemail.com: 10
  • mxa.mailgun.org: 10
  • mxb.mailgun.org: 10
  • alt1.aspmx.l.google.com: 5
  • alt2.aspmx.l.google.com: 5
  • aspmx.l.google.com: 1
  • aspmx2.googlemail.com: 10
  • aspmx3.googlemail.com: 10

A / AAAA Records

  • 172.66.155.9 (no PTR)
  • 104.20.41.207 (no PTR)
  • 2606:4700:10::ac42:9b09 (no PTR)
  • 2606:4700:10::6814:29cf (no PTR)

Mail Server IPs

  • 216.40.42.4 ↩ mx.hostedemail.com
  • 34.149.236.64 ↩ 64.236.149.34.bc.googleusercontent.com
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net

SOA Record

Raw SOA kaiser.ns.cloudflare.com dns.cloudflare.com 2399758386 10000 2400 604800 1800
Primary NS (mname)
kaiser.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399758386
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

kimora.ns.cloudflare.com
kaiser.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:mailgun.org ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate 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

4 records
  • amazonses:JH6jc3qAGPRN7CN33TRPnK6llqbQUrjMT0jQ8HFT7Yk=
  • google-site-verification=UzUhnH5PSncRed3fQIvVbHFhJRRW5qi0WCNMmOal2LI
  • google-site-verification=XUfEOH-wiVSZcBweZTqBmIEniE1ui0fnZH5w7ERvIjU
  • SPFv=spf1 include:mailgun.org ~all
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