Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
investsp.org.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 05:58:39 UTC · ↺ Refresh
MX Hostnames
- investsp-org-br.mail.protection.outlook.com
MX Priorities
- investsp-org-br.mail.protection.outlook.com: 10
A / AAAA Records
- 52.67.207.160 ↩ ec2-52-67-207-160.sa-east-1.compute.amazonaws.com
Mail Server IPs
- 52.101.50.13 ↩ mail-mw2pr02cu00605.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
SOA Record
Raw SOA
nicole.ns.cloudflare.com dns.cloudflare.com 2400298899 10000 2400 604800 1800
Primary NS (mname)
nicole.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400298899
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
walt.ns.cloudflare.com
nicole.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.rdstation.com.br include:sendgrid.net include:_spf.mailersend.net include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; fo=1; aspf=s; adkim=s; rf=afrf; ri=86400; sp=reject;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:_spf.rdstation.com.br include:sendgrid.net include:_spf.mailersend.net include:spf.protection.outlook.com -all
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