Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
qpsistemas.com.br
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 06:26:26 UTC · ↺ Refresh
MX Hostnames
- aspmx3.googlemail.com
- alt2.aspmx.l.google.com
- aspmx2.googlemail.com
- alt1.aspmx.l.google.com
- aspmx.l.google.com
MX Priorities
- alt1.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- aspmx3.googlemail.com: 10
- aspmx2.googlemail.com: 10
- alt2.aspmx.l.google.com: 5
A / AAAA Records
- 52.45.137.103 ↩ ec2-52-45-137-103.compute-1.amazonaws.com
Mail Server IPs
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 142.251.163.27 ↩ wv-in-f27.1e100.net
- 2607:f8b0:4004:c1d::1a ↩ ww-in-f26.1e100.net
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
SOA Record
Raw SOA
a.sec.dns.br hostmaster.registro.br 2026072000 345600 900 604800 900
Primary NS (mname)
a.sec.dns.br
Admin Email (rname)
hostmaster@registro.br
Serial
2026072000
Refresh
345600s
Retry
900s
Expire
604800s
Minimum TTL
900s
Nameservers (NS)
b.sec.dns.br
a.sec.dns.br
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.sendinblue.com mx ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
google._domainkey
mail._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
2 records- SPFv=spf1 include:spf.sendinblue.com mx ~all
- sendinblue-code:3cfb4509cd6d8727ed3f496ac24dfdf5
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