Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fairfax.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-06 14:05:42 UTC · ↺ Refresh
MX Hostnames
- fairfax-com-br.mail.protection.outlook.com
MX Priorities
- fairfax-com-br.mail.protection.outlook.com: 0
A / AAAA Records
- 52.252.23.178 (no PTR)
Mail Server IPs
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-38.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-38.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns4-38.azure-dns.info
ns1-38.azure-dns.com
ns2-38.azure-dns.net
ns3-38.azure-dns.org
SPF Record
✓ Strict (-all)
v=spf1 include:21775878.spf02.hubspotemail.net include:mail.zendesk.com include:spf-008f1202.pphosted.com include:spf.protection.outlook.com include:sendgrid.net include:spf-us.emailsignatures365.com include:_spf.psm.knowbe4.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;rua=mailto:[email protected];ri=86400;aspf=s;adkim=s;fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 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
15 records- _u8f2asxpt3osj2vt56xjx24aio1wrqr
- lTa-mj70SplMLnK2OXLK3O0nLLeazDjFl8CMmCHQ-WW6tmm5gXz4WnPaczfKIoo
- _afr18smzck7xmlg69muznu7forcrmj0
- "MS=ms87820112"
- SPFv=spf1 include:21775878.spf02.hubspotemail.net include:mail.zendesk.com include:spf-008f1202.pphosted.com include:spf.protection.outlook.com include:sendgrid.net include:spf-us.emailsignatures365.com include:_spf.psm.knowbe4.com -all
- "MS=ms10750827"
- "5UJ6GW5JC6r5ULB3RX+h/3g3ME0UNisTemUcM+SkMvQ="
- _globalsign-domain-verification=nZKsHcTFwoltEZXCqXvs6HpVryJJFzMuxsQWQGmqtI
- miro-verification=327f7b626dfb146509722ec94b4f2ce86c1c82a1
- docusign=a7a6ec6d-aafc-4bc5-9db7-c7482a35247c
- uber-domain-verification=1415bd86-9cbc-496d-b251-f395402b6ca1
- atlassian-sending-domain-verification=37c82d18-fae4-49ea-be76-4d15762728d6
- figma-domain-verification=bc4f48b78697a2f4c6ea19e9ac44880298be7e58769f3ee3c313453b6e0f1268-1760378469
- Foxit-domain-verification=4a34c2cfef3a6c622aad0a5ac33cb88c
- openai-domain-verification=dv-NepHQt7EQgZxPBIpyJFSPJN9
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