Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
redbelt.com.br
Yes
✓ Yes
SendGrid
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 03:36:32 UTC · ↺ Refresh
MX Hostnames
- redbelt.com.br
- redbelt-com-br.mail.protection.outlook.com
- mx.sendgrid.net
MX Priorities
- mx.sendgrid.net: 10
- redbelt.com.br: 10
- redbelt-com-br.mail.protection.outlook.com: 0
A / AAAA Records
- 45.60.115.101
- 45.60.86.101
Mail Server IPs
- 52.37.49.26 ↩ ec2-52-37-49-26.us-west-2.compute.amazonaws.com
- 3.17.120.38 ↩ ec2-3-17-120-38.us-east-2.compute.amazonaws.com
- 52.25.213.239 ↩ ec2-52-25-213-239.us-west-2.compute.amazonaws.com
- 44.216.124.122 ↩ ec2-44-216-124-122.compute-1.amazonaws.com
- 15.222.160.229 ↩ ec2-15-222-160-229.ca-central-1.compute.amazonaws.com
- 13.216.54.185 ↩ ec2-13-216-54-185.compute-1.amazonaws.com
- 34.198.67.24 ↩ ec2-34-198-67-24.compute-1.amazonaws.com
- 18.224.101.244 ↩ ec2-18-224-101-244.us-east-2.compute.amazonaws.com
- 16.52.61.209 ↩ ec2-16-52-61-209.ca-central-1.compute.amazonaws.com
- 16.52.110.174 ↩ ec2-16-52-110-174.ca-central-1.compute.amazonaws.com
- 44.245.249.202
- 3.136.245.72
- 45.60.115.101
- 45.60.86.101
- 52.101.42.16
- 52.101.50.7
- 52.101.194.19
- 52.101.194.13
- 2a01:111:f403:f901::
- 2a01:111:f403:c92c::1
- 2a01:111:f403:f902::2
- 2a01:111:f403:c801::
SOA Record
Raw SOA
ns1.redbelt.com.br henrique\.lopes.redbelt.com.br 2026032306 3600 1800 1209600 86400
Primary NS (mname)
ns1.redbelt.com.br
Admin Email (rname)
henrique\@lopes.redbelt.com.br
Serial
2026032306
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.redbelt.com.br
ns2.redbelt.com.br
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +ip4:52.186.168.154 +include:spf.protection.outlook.com +include:_spf.rdstation.com.br +include:em2201.redbelt.com.br +include:sendgrid.net -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:[email protected];ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
default._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
8 records- SPFv=spf1 +a +mx +ip4:52.186.168.154 +include:spf.protection.outlook.com +include:_spf.rdstation.com.br +include:em2201.redbelt.com.br +include:sendgrid.net -all
- wrike-verification=Njk2OTc0NjoxZTRkMTZkOGFlOTcwN2MzMTA5MzYzMDBmZmZkNTk1YzIzMzNkOGYzNTdmYzAyZDIzOWU5YzExMzQyMzY5Nzg4
- google-site-verification=pxveCuT8w7OQFtb_glBWz106-Gsr3QZi9hFMVjHI9gs
- globalsign-domain-verification=93ACA04FE5B3C29F82771B53CA46EBD7
- globalsign-domain-verification=1396F77BD1D3A73B762CE6FE46AB0ECB
- globalsign-domain-verification=c7af9fa9203701d57a96f7aa6eb1912f
- google-site-verification=zhjsQDT_Hy9g_JnChE18WahE1p8sQ2-GppMDckr1Pro
- atlassian-domain-verification=A8NlUIZ1UsK3rjhv7049SpmV7zyIZX9jgztRa4bUX5TjthSxaJbiQsHPIVtj4Av7
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