Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
saolucas.edu.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 08:01:02 UTC · ↺ Refresh
MX Hostnames
- saolucas-edu-br.mail.protection.outlook.com
MX Priorities
- saolucas-edu-br.mail.protection.outlook.com: 0
A / AAAA Records
- 172.64.145.44 (no PTR)
- 104.18.42.212 (no PTR)
- 2606:4700:4406::ac40:912c
- 2a06:98c1:3105::6812:2ad4
Mail Server IPs
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
fiona.ns.cloudflare.com dns.cloudflare.com 2400041789 10000 2400 604800 1800
Primary NS (mname)
fiona.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400041789
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
pete.ns.cloudflare.com
fiona.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; aspf=s; rua=mailto:[email protected]; ruf=mailto:[email protected]; ri=84600
✓ Reject — strongest protection
📋 SPF alignment: Strict
· 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
9 records- SPFv=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com -all
- 6ba4bf206f118f5abe607189b3ec69e6
- MS=ms39264360
- MS=ms51137318
- MS=ms81104655
- google-site-verification=6UrXPN8liv-6erCsw21vIIWK--P54uxUVlrE9gHrzUk
- google-site-verification=CtT21BbJ4nLUXAuFu1CoAcLPGLeNYFI36mdifMxQDzU
- knowbe4-site-verification=3f432771bc736fecf8a62a0930c7f7e7
- openai-domain-verification=dv-lhXAJAUfoJPUahWmqQzjH0VO
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