residuum.com.br

Valid Email Server
Domain Lookup › residuum.com.br

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
residuum.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-31 04:27:50 UTC · ↺ Refresh

MX Hostnames

  • mx364.umbler.com
  • mx783.umbler.com.br
  • mx240.umbler.co.uk
  • mx128.umbler.in

MX Priorities

  • mx364.umbler.com: 10
  • mx128.umbler.in: 20
  • mx783.umbler.com.br: 30
  • mx240.umbler.co.uk: 40

A / AAAA Records

  • 185.230.63.107 ↩ unalocated.63.wixsite.com

Mail Server IPs

  • 187.84.237.180 ↩ mx.umbler.com
  • 177.55.120.51 ↩ mx.umbler.com
  • 187.84.237.189 ↩ mx.umbler.com
  • 177.55.120.53 ↩ mx.umbler.com

SOA Record

Raw SOA d.sec.dns.br hostmaster.registro.br 2026083000 86400 900 604800 900
Primary NS (mname)
d.sec.dns.br
Admin Email (rname)
hostmaster@registro.br
Serial
2026083000
Refresh
86400s
Retry
900s
Expire
604800s
Minimum TTL
900s

Nameservers (NS)

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

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.umbler.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

1 record
  • SPFv=spf1 include:spf.umbler.com ~all
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