Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sbt.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-29 00:26:28 UTC · ↺ Refresh
MX Hostnames
- sbt-com-br.mail.protection.outlook.com
MX Priorities
- sbt-com-br.mail.protection.outlook.com: 10
A / AAAA Records
- 34.98.87.64 ↩ 64.87.98.34.bc.googleusercontent.com
Mail Server IPs
- 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
- 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-cloud-b1.googledomains.com cloud-dns-hostmaster.google.com 1 21600 3600 259200 300
Primary NS (mname)
ns-cloud-b1.googledomains.com
Admin Email (rname)
cloud-dns-hostmaster@google.com
Serial
1
Refresh
21600s
Retry
3600s
Expire
259200s
Minimum TTL
300s
Nameservers (NS)
ns-cloud-b3.googledomains.com
ns-cloud-b2.googledomains.com
ns-cloud-b1.googledomains.com
ns-cloud-b4.googledomains.com
SPF Record
✓ Strict (-all)
v=spf1 a mx include:spf.protection.outlook.com include:spf.sbt.com.br include:spf-us.emailsignatures365.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
6 records- google-site-verification=89FH6BPnQBHs_vkbp965BoLrAkO1BlXLJhn62V0d-ss
- DVEM80L2R978YRBTOV465MDUNCMORI6Q7A0PQPFE
- SPFv=spf1 a mx include:spf.protection.outlook.com include:spf.sbt.com.br include:spf-us.emailsignatures365.com -all
- google-site-verification=ClGEo_9YKGzDXxcKzYaH5aMmK28M5mtmUwB83_P3ct8
- facebook-domain-verification=pqwn9crje5ocvaiogyi7zup76y0vnk
- ibmid=c8c06b4f-a9c4-4695-b4c0-ef74b0562794
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