Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
copobras.com.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 21:52:37 UTC · ↺ Refresh
MX Hostnames
- inbound.grupocopobras.com.br
- inbound.gruposbde.com.br
- webmail.copobras.com.br
- inbound4.gruposbde.com.br
MX Priorities
- inbound.gruposbde.com.br: 10
- inbound4.gruposbde.com.br: 20
- inbound.grupocopobras.com.br: 5
- webmail.copobras.com.br: 1
A / AAAA Records
- 172.67.222.144 (no PTR)
- 104.21.35.130 (no PTR)
- 2606:4700:3033::ac43:de90 (no PTR)
- 2606:4700:3036::6815:2382 (no PTR)
Mail Server IPs
- 200.247.154.35 (no PTR)
- 187.102.41.99 ↩ inbound.grupocopobras.com.br
- 45.181.5.10 ↩ inbound10.grupocopobras.com.br
SOA Record
Raw SOA
anita.ns.cloudflare.com dns.cloudflare.com 2399060319 10000 2400 604800 1800
Primary NS (mname)
anita.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399060319
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
kaiser.ns.cloudflare.com
anita.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:45.181.4.0/23 ip4:173.230.133.104 ip4:187.52.168.35 ip4:200.247.154.32/28 ip4:45.181.5.4 ip4:45.181.5.10 ip4:45.181.4.100 ip4:187.102.41.97/28 a:inbound4.gruposbde.com.br a:webmail.copobras.com.br a:inbound.grupocopobras.com.br a:inbound.gruposbde.com.br a:vps01.ostec.com.br a:vps02.ostec.com.br include:sendgrid.net -all
📊 DNS lookups: 9/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 3 found
mail._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 a mx ip4:45.181.4.0/23 ip4:173.230.133.104 ip4:187.52.168.35 ip4:200.247.154.32/28 ip4:45.181.5.4 ip4:45.181.5.10 ip4:45.181.4.100 ip4:187.102.41.97/28 a:inbound4.gruposbde.com.br a:webmail.copobras.com.br a:inbound.grupocopobras.com.br a:inbound.gruposbde.com.br a:vps01.ostec.com.br a:vps02.ostec.com.br include:sendgrid.net -all
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