Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mauriciodenassau.edu.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 13:04:43 UTC · ↺ Refresh
MX Hostnames
- mauriciodenassau-edu-br.mail.protection.outlook.com
MX Priorities
- mauriciodenassau-edu-br.mail.protection.outlook.com: 1
A / AAAA Records
- 189.80.207.21 (no PTR)
- 179.185.57.181 ↩ sereducacional.static.gvt.net.br
Mail Server IPs
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f903:: (no PTR)
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.mauriciodenassau.edu.br hostmaster.mauriciodenassau.edu.br 2024090310 43201 7200 1209600 3600
Primary NS (mname)
dns1.mauriciodenassau.edu.br
Admin Email (rname)
hostmaster@mauriciodenassau.edu.br
Serial
2024090310
Refresh
43201s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
dns3.mauriciodenassau.edu.br
dns1.mauriciodenassau.edu.br
dns2.mauriciodenassau.edu.br
SPF Record
✓ Strict (-all)
v=spf1 ip4:64.18.0.0/20 ip4:207.126.144.0/20 ip4:74.125.148.0/22 ip4:74.125.244.0/22 ip4:200.199.41.40/29 ip4:123.45.6.7 ip4:67.21.115.0/24 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=d; adkim=r; aspf=r
⚠ p=none — monitoring only, no enforcement
📋 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
5 records- yv6jsbvhf03zmrd5f98gh24qtq80tb48
- google-site-verification=HdMNFdwO4wHxpoQzUwXVqPx_tt1NchfWNLEF1FwasEg
- asap-site-verification-274d5445-def7-4d11-a449-2ad35808e552
- MS=ms57648186
- SPFv=spf1 ip4:64.18.0.0/20 ip4:207.126.144.0/20 ip4:74.125.148.0/22 ip4:74.125.244.0/22 ip4:200.199.41.40/29 ip4:123.45.6.7 ip4:67.21.115.0/24 include:spf.protection.outlook.com -all
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