Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sistran.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 18:08:09 UTC · ↺ Refresh
MX Hostnames
- sistran-com-br.mail.protection.outlook.com
MX Priorities
- sistran-com-br.mail.protection.outlook.com: 0
A / AAAA Records
- 187.17.111.35 (no PTR)
Mail Server IPs
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
emma.ns.cloudflare.com dns.cloudflare.com 2399607523 10000 2400 604800 1800
Primary NS (mname)
emma.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399607523
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
emma.ns.cloudflare.com
yadiel.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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- MS=ms39627935
- MS=ms73164749
- cursor-domain-verification-92d7rp=u6zpCTmMGFwbZoRkJyiP61MJX
- openai-domain-verification=dv-vwuz9d6ifuIST2q66mXQhKZA
- SPFv=spf1 include:spf.protection.outlook.com -all
- DZCsL5OyEi
Full email verification for sistran.com.br
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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