justbit.io

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
justbit.io
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-14 06:01:59 UTC · ↺ Refresh

MX Hostnames

  • smtp.google.com

MX Priorities

  • smtp.google.com: 1

A / AAAA Records

  • 82.139.216.5 (no PTR)

Mail Server IPs

  • 142.251.16.27 ↩ bl-in-f27.1e100.net
  • 142.251.16.26 ↩ bl-in-f26.1e100.net
  • 142.251.111.27 ↩ bk-in-f27.1e100.net
  • 142.251.163.26 ↩ wv-in-f26.1e100.net
  • 142.251.163.27 ↩ wv-in-f27.1e100.net
  • 2607:f8b0:4004:c1b::1b ↩ wv-in-f27.1e100.net
  • 2607:f8b0:4004:c1b::1a ↩ wv-in-f26.1e100.net
  • 2607:f8b0:4004:c17::1b ↩ bl-in-f27.1e100.net
  • 2607:f8b0:4004:c19::1b ↩ bk-in-f27.1e100.net

SOA Record

Raw SOA cesar.ns.cloudflare.com dns.cloudflare.com 2398009820 10000 2400 604800 1800
Primary NS (mname)
cesar.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398009820
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

nataly.ns.cloudflare.com
cesar.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:mailgun.org ?all
📊 DNS lookups: 2/10
? Neutral (?all) — no enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 4 found
google._domainkey
default._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google

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

All TXT Records

3 records
  • google-site-verification=FCH7FvbZkWcZaG34UFEn_-iB5TTBQhUFIgdQAGxEiRk
  • google-site-verification=oyk_UGOB1ix--wHaosBYTLUquBXVyXwh2SRKnxzhYLk
  • SPFv=spf1 include:_spf.google.com include:mailgun.org ?all
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