rgb.com.br

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
rgb.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-23 14:15:55 UTC · ↺ Refresh

MX Hostnames

  • mx-us.spfbl.net
  • mx-br.spfbl.net

MX Priorities

  • mx-br.spfbl.net: 10
  • mx-us.spfbl.net: 20

A / AAAA Records

  • 179.190.13.200 ↩ rgb21.isbrasil.info

Mail Server IPs

  • 52.67.41.212 ↩ mx-br.spfbl.net
  • 2600:1f1e:4b3:bd00::8 ↩ mx-br.spfbl.net
  • 35.162.4.77 ↩ mx-us.spfbl.net
  • 2600:1f14:dfd:4401::8 ↩ mx-us.spfbl.net

SOA Record

Raw SOA ns-ca.rgbserver.com.br gerenciamento.isbrasil.info 2026020701 3600 1800 1209600 86400
Primary NS (mname)
ns-ca.rgbserver.com.br
Admin Email (rname)
gerenciamento@isbrasil.info
Serial
2026020701
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-fr.rgbserver.com.br
ns-ca.rgbserver.com.br

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:179.190.13.200 ip4:167.114.174.198 ip4:66.94.127.127 +mx include:amazonses.com include:spf.leadconnectorhq.com include:mailgun.org ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none

DKIM Selectors

✓ 3 found
default._domainkey
s1._domainkey
s2._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

3 records
  • SPFv=spf1 ip4:179.190.13.200 ip4:167.114.174.198 ip4:66.94.127.127 +mx include:amazonses.com include:spf.leadconnectorhq.com include:mailgun.org ~all
  • google-site-verification=R2CiYxdoVjYx23NnR6eE5zsufhQnPicUa64zFH84S9g
  • amazonses:uxMbkvP0u3IB8US86pXMUYSxRpLmEtDuyiOUFFnTusE=
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