Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
o3capital.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 05:24:51 UTC · ↺ Refresh
MX Hostnames
- o3capital-com-br.mail.protection.outlook.com
MX Priorities
- o3capital-com-br.mail.protection.outlook.com: 5
A / AAAA Records
- 54.94.141.247 ↩ ec2-54-94-141-247.sa-east-1.compute.amazonaws.com
Mail Server IPs
- 52.101.198.1 ↩ mail-cp4p284cu00401.inbound.protection.outlook.com
- 52.101.198.38 ↩ mail-cp3p284cu00706.inbound.protection.outlook.com
- 52.101.200.0 ↩ mail-roap284cu02600.inbound.protection.outlook.com
- 52.101.198.0 ↩ mail-cp5p284cu01800.inbound.protection.outlook.com
- 2a01:111:f403:c94a::1 ↩ mail-cp4p284cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c94a:: ↩ mail-cp5p284cu01800.inbound.protection.outlook.com
- 2a01:111:f403:c94a::2 ↩ mail-cp3p284cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c94c:: ↩ mail-roap284cu02600.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-579.awsdns-08.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-579.awsdns-08.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-579.awsdns-08.net
ns-1097.awsdns-09.org
ns-1883.awsdns-43.co.uk
ns-252.awsdns-31.com
SPF Record
✓ Strict (-all)
v=spf1 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]; rf=afrf; pct=100
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
8 records- 569au89i3tqs4tg0rnsjnu8rp4
- 83l5l9fkamnftte6riir8p6kfg
- MS=ms87987871
- YUDG4sGfTygFwmTOZ7Pt5O0gPbJxuB32/53XcYadJMTonhJPKbpKylmYJy+PhmDzeR4E8Hc5OuSpfpvvFXitPA==
- ZOOM_verify_CVd66LIYQ6Co5gKDrFfstw
- knowbe4-site-verification=1a9122435660623109fc7261cc701f62
- SPFv=spf1 include:spf.protection.outlook.com -all
- 4lkcqp1mivd10obkne7tgoj0u2
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