Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fiberx.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-04 12:19:04 UTC · ↺ Refresh
MX Hostnames
- fiberx-com-br.mail.protection.outlook.com
MX Priorities
- fiberx-com-br.mail.protection.outlook.com: 0
A / AAAA Records
- 104.26.9.21 (no PTR)
- 104.26.8.21 (no PTR)
- 172.67.72.58
- 2606:4700:20::681a:815
- 2606:4700:20::ac43:483a
- 2606:4700:20::681a:915
Mail Server IPs
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
- 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
hope.ns.cloudflare.com dns.cloudflare.com 2400771155 10000 2400 604800 1800
Primary NS (mname)
hope.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400771155
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
hope.ns.cloudflare.com
sullivan.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.rdstation.com.br include:sendgrid.net include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate 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
✓ 5 found
selector1._domainkey
selector2._domainkey
default._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
6 records- uber-domain-verification=440b25a0-10d1-4c05-ad35-5c564cda6887
- SPFv=spf1 include:_spf.rdstation.com.br include:sendgrid.net include:spf.protection.outlook.com ~all
- MS=ms79947101
- google-site-verification=aiPN2iP8X2BTOXwjDRY3Wd9BdCBSHMwoEwNkk19qdC4
- mandrill_verify.OIrXWyHgpIoqC5r6Ld_CYg
- postman-domain-verification=22132f9f6dfaa6f0314f1c124305f40637c7178c408adf45a1681a16b60384169fdb8c16b6cab8d3a45017bbf65f1e038bf44944f365037d73bfa89f5bdde3bf
Full email verification for fiberx.com.br
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