Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
saebrasil.org.br
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 08:42:00 UTC · ↺ Refresh
MX Hostnames
- mx.b.locaweb.com.br
- mx.core.locaweb.com.br
- mx.jk.locaweb.com.br
- mx.a.locaweb.com.br
MX Priorities
- mx.core.locaweb.com.br: 10
- mx.jk.locaweb.com.br: 20
- mx.a.locaweb.com.br: 10
- mx.b.locaweb.com.br: 10
A / AAAA Records
- 54.144.185.202 ↩ ec2-54-144-185-202.compute-1.amazonaws.com
Mail Server IPs
- 177.153.23.241 ↩ mx.core.locaweb.com.br
- 200.234.204.130 ↩ mx.jk.locaweb.com.br
- 186.202.4.42 ↩ mx.a.locaweb.com.br
- 177.153.23.242 ↩ mx.b.locaweb.com.br
SOA Record
Raw SOA
ns-290.awsdns-36.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-290.awsdns-36.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-685.awsdns-21.net
ns-1366.awsdns-42.org
ns-1786.awsdns-31.co.uk
ns-290.awsdns-36.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.locaweb.com.br include:_spf.saebrasil.org.br include:_spf.rdstation.com.br include:sendgrid.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- amazonses:MCkXO0hTguKAT11Crgs1Q5KYmL/jDfChgpnHLYz3ILg=
- SPFv=spf1 include:_spf.locaweb.com.br include:_spf.saebrasil.org.br include:_spf.rdstation.com.br include:sendgrid.net -all
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