operativa.com.br

Valid Email Server
Domain Lookup › operativa.com.br

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
operativa.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-29 08:34:38 UTC · ↺ Refresh

MX Hostnames

  • operativa-com-br.mail.protection.outlook.com

MX Priorities

  • operativa-com-br.mail.protection.outlook.com: 0

A / AAAA Records

  • 104.21.20.134 (no PTR)
  • 172.67.192.237 (no PTR)
  • 2606:4700:3033::ac43:c0ed
  • 2606:4700:3036::6815:1486

Mail Server IPs

  • 52.101.200.0 ↩ mail-roap284cu02600.inbound.protection.outlook.com
  • 52.101.198.38 ↩ mail-cp3p284cu00706.inbound.protection.outlook.com
  • 52.101.198.1 ↩ mail-cp4p284cu00401.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::2 ↩ mail-cp3p284cu00702.inbound.protection.outlook.com
  • 2a01:111:f403:c94c:: ↩ mail-roap284cu02600.inbound.protection.outlook.com
  • 2a01:111:f403:c94a:: ↩ mail-cp5p284cu01800.inbound.protection.outlook.com

SOA Record

Raw SOA kim.ns.cloudflare.com dns.cloudflare.com 2398117649 10000 2400 604800 1800
Primary NS (mname)
kim.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398117649
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

kim.ns.cloudflare.com
max.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._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

3 records
  • google-site-verification=xwad6m2S3TMzWq_EH_a-y9nOAwLJDqkzCuFOswp5Su8
  • SPFv=spf1 include:spf.protection.outlook.com ~all
  • MS=ms21869744
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