isbl.mx

Valid Email Server

Domain Overview

DNS: ✓ 2d ago Checker: ✓ 2d ago
isbl.mx
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-07-01 03:41:18 UTC · ↺ Refresh

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MX Hostnames

  • ASPMX.L.GOOGLE.COM
  • ALT3.ASPMX.L.GOOGLE.COM
  • ALT1.ASPMX.L.GOOGLE.COM
  • ALT2.ASPMX.L.GOOGLE.COM

MX Priorities

  • alt2.aspmx.l.google.com: 5
  • alt1.aspmx.l.google.com: 5
  • aspmx.l.google.com: 1
  • alt3.aspmx.l.google.com: 10

A / AAAA Records

  • 198.59.144.11 ↩ svgp249.serverneubox.com.mx

Mail Server IPs

  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 142.250.31.27 ↩ bj-in-f27.1e100.net
  • 2607:f8b0:4004:c1b::1a ↩ wv-in-f26.1e100.net
  • 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net

SOA Record

Raw SOA ns144.neubox.net root.svgp249.serverneubox.com.mx 2026061703 3600 1800 1209600 86400
Primary NS (mname)
ns144.neubox.net
Admin Email (rname)
root@svgp249.serverneubox.com.mx
Serial
2026061703
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns144.neubox.net
ns143.neubox.net
ns245.neubox.net

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:198.59.144.11 include:relay.mailchannels.net include:smtp.relay.serverneubox.com.mx +mx +ip4:209.85.218.50 +include:spf.anti-spam-premium.com +include:_spf.google.com +include:_spf.smtp.com include:spf.fromdoppler.com ~all
📊 DNS lookups: 8/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1;p=none;sp=reject;adkim=s;aspf=s;pct=100;fo=0;rf=afrf;ri=86400;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: reject

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

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

All TXT Records

1 record
  • SPFv=spf1 ip4:198.59.144.11 include:relay.mailchannels.net include:smtp.relay.serverneubox.com.mx +mx +ip4:209.85.218.50 +include:spf.anti-spam-premium.com +include:_spf.google.com +include:_spf.smtp.com include:spf.fromdoppler.com ~all
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