Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fiduc.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-06 14:10:46 UTC · ↺ Refresh
MX Hostnames
- fiduc-com-br.mail.protection.outlook.com
MX Priorities
- fiduc-com-br.mail.protection.outlook.com: 5
A / AAAA Records
- 18.229.68.66 ↩ ec2-18-229-68-66.sa-east-1.compute.amazonaws.com
Mail Server IPs
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 2a01:111:f403:f903:: (no PTR)
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-988.awsdns-59.net awsdns-hostmaster.amazon.com 2024020201 7200 900 1209600 86400
Primary NS (mname)
ns-988.awsdns-59.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
2024020201
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-988.awsdns-59.net
ns-1337.awsdns-39.org
ns-1605.awsdns-08.co.uk
ns-343.awsdns-42.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.rdstation.com.br include:sendgrid.net include:_spf.octadesk.com ip4:18.228.236.120 ip4:173.236.20.0/24 ip4:192.92.97.0/24 ip4:52.128.40.0/21 a mx -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
mail._domainkey
s1._domainkey
s2._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
6 records- SPFv=spf1 include:spf.protection.outlook.com include:_spf.rdstation.com.br include:sendgrid.net include:_spf.octadesk.com ip4:18.228.236.120 ip4:173.236.20.0/24 ip4:192.92.97.0/24 ip4:52.128.40.0/21 a mx -all
- MS=ms11444778
- MS=ms87483919
- brevo-code:ba718a163c7507fdd77f21ddbaad5ecc
- facebook-domain-verification=jx24yppq6ksj8zrn745c9q1qwjb8rx
- google-site-verification=shTxrTq3XVacLoZscmQ9B0kZ9BUeqLKA4xqihwAb5gg
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