Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
osstem.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 02:31:00 UTC · ↺ Refresh
MX Hostnames
- implacilosstem-com-br.mail.protection.outlook.com
MX Priorities
- implacilosstem-com-br.mail.protection.outlook.com: 0
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
SOA Record
Raw SOA
d.sec.dns.br hostmaster.registro.br 2026072000 345600 900 604800 900
Primary NS (mname)
d.sec.dns.br
Admin Email (rname)
hostmaster@registro.br
Serial
2026072000
Refresh
345600s
Retry
900s
Expire
604800s
Minimum TTL
900s
Nameservers (NS)
e.sec.dns.br
d.sec.dns.br
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms47426542
- google-site-verification=WWhRjzXrUnaG3WLKcVi9FNwizgEv9vZ3ZQBo3myDyik
Full email verification for osstem.com.br
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