rio21design.com.br

Valid Email Server
Domain Lookup › rio21design.com.br

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
rio21design.com.br
Yes
✓ Yes
iCloud
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-03 05:07:13 UTC · ↺ Refresh

MX Hostnames

  • mx01.mail.icloud.com
  • mx02.mail.icloud.com

MX Priorities

  • mx01.mail.icloud.com: 10
  • mx02.mail.icloud.com: 10

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 17.57.156.30 ↩ mx02.mail.icloud.com
  • 17.42.251.62 ↩ mx3.mail.icloud.com
  • 17.56.9.31 ↩ mx01.mail.icloud.com
  • 17.57.152.5 ↩ mx01.mail.icloud.com
  • 17.57.154.33 ↩ mx01.mail.icloud.com
  • 17.57.155.25 ↩ mx02.mail.icloud.com

SOA Record

Raw SOA d.sec.dns.br hostmaster.registro.br 2026093000 86400 900 604800 900
Primary NS (mname)
d.sec.dns.br
Admin Email (rname)
hostmaster@registro.br
Serial
2026093000
Refresh
86400s
Retry
900s
Expire
604800s
Minimum TTL
900s

Nameservers (NS)

d.sec.dns.br
e.sec.dns.br

SPF Record

✓ Soft Fail (~all)
v=spf1 include:icloud.com ~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

2 records
  • SPFv=spf1 include:icloud.com ~all
  • apple-domain=cHvTGZXwy1mlAwjd
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