Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
oas.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 19:48:01 UTC · ↺ Refresh
MX Hostnames
- oas-org.mail.protection.outlook.com
MX Priorities
- oas-org.mail.protection.outlook.com: 10
A / AAAA Records
- 104.20.44.162 (no PTR)
- 172.66.169.123 (no PTR)
- 2606:4700:10::6814:2ca2
- 2606:4700:10::ac42:a97b
Mail Server IPs
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
- 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
carioca.ns.cloudflare.com dns.cloudflare.com 2398649783 10000 2400 604800 1800
Primary NS (mname)
carioca.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398649783
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
maxim.ns.cloudflare.com
carioca.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:207.237.156.1 ip4:207.237.156.2 ip4:207.237.157.1 ip4:207.237.157.97 ip4:207.237.157.109 ip4:207.237.157.203 ip4:207.237.157.204 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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 ip4:207.237.156.1 ip4:207.237.156.2 ip4:207.237.157.1 ip4:207.237.157.97 ip4:207.237.157.109 ip4:207.237.157.203 ip4:207.237.157.204 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com -all
- 2ti+x9gighP7czLMSH37AfLb7RX1gSTEGkJ/6xqZxzfT3aRCYWxm8CvdAh25AynsY7X4LucY4fI8VqTiVxG2Rw==
- MS=4AE35E0A9FAB1769374369AE4C7900378C936CBB
- MS=ms42583232
- SC0XMCWQLDRSK81LY12FW491QQ4BBFW1GG06LVU2
- YkRHvmNp9YzJO9UI/W2ox2Ia8BP0tOAQlm/R7/FngyFZ2gh7jP5HN50qtdC9W11I2Q9Uza0iqE175dF5min6Kg==
- apple-domain-verification=zS7j0sdqPJXleJ1r
- cisco-ci-domain-verification=7a203d8a8a2dde2d4192326959deecd34f4324d052b379fd57d51b24de36909e
- openai-domain-verification=dv-w7SNESPY1DvaiF95pDZ54eLs
Full email verification for oas.org
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