Domain Overview
DNS: ✓ 1d ago
Checker: ✓ 1d ago
mrcat.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-20 05:36:54 UTC · ↺ Refresh
MX Hostnames
- mrcat-com-br.mail.protection.outlook.com
MX Priorities
- mrcat-com-br.mail.protection.outlook.com: 10
A / AAAA Records
- 172.67.183.171 (no PTR)
- 104.21.59.209 (no PTR)
- 2606:4700:3035::ac43:b7ab
- 2606:4700:3031::6815:3bd1
Mail Server IPs
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 52.101.9.17 (no PTR)
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
armfazh.ns.cloudflare.com dns.cloudflare.com 2404391573 10000 2400 604800 1800
Primary NS (mname)
armfazh.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2404391573
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
armfazh.ns.cloudflare.com
kelly.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf1.auinmeio.com.br include:spf2.auinmeio.com.br include:_spf.smtplw.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=1; adkim=r; aspf=r
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
⚠ Policy applies to 1% of failing messages only
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
k1._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
1 record- SPFv=spf1 include:spf.protection.outlook.com include:spf1.auinmeio.com.br include:spf2.auinmeio.com.br include:_spf.smtplw.com -all
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