Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rsmbrasil.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 20:35:59 UTC · ↺ Refresh
MX Hostnames
- mx01.rsmbrasil.com.br
- rsmbrasil-com-br.mail.protection.outlook.com
MX Priorities
- mx01.rsmbrasil.com.br: 50
- rsmbrasil-com-br.mail.protection.outlook.com: 0
A / AAAA Records
- 18.188.211.103 ↩ ec2-18-188-211-103.us-east-2.compute.amazonaws.com
Mail Server IPs
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-962.awsdns-56.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-962.awsdns-56.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1796.awsdns-32.co.uk
ns-962.awsdns-56.net
ns-121.awsdns-15.com
ns-1266.awsdns-30.org
SPF Record
✓ Strict (-all)
v=spf1 a mx ptr include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; ruf=mailto:[email protected]; rua=mailto:[email protected];aspf=r; adkim=r
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._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
1 record- SPFv=spf1 a mx ptr include:spf.protection.outlook.com -all
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