Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
1850invest.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 06:10:34 UTC · ↺ Refresh
MX Hostnames
- 1850invest-com.mail.protection.outlook.com
MX Priorities
- 1850invest-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.67.138 (no PTR)
- 172.67.177.55 (no PTR)
- 2606:4700:3034::ac43:b137
- 2606:4700:3033::6815:438a
Mail Server IPs
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
SOA Record
Raw SOA
dolly.ns.cloudflare.com dns.cloudflare.com 2399720959 10000 2400 604800 1800
Primary NS (mname)
dolly.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399720959
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
dolly.ns.cloudflare.com
ed.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:mailgun.org include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected];ruf=mailto:[email protected];adkim=s;aspf=s;fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._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
5 records- brevo-code:a6da2f04e0b5ca33f0c79942c55b1da2
- google-gws-recovery-domain-verification=38884520
- SPFv=spf1 include:mailgun.org include:spf.protection.outlook.com -all
- MS=ms40154855
- anthropic-domain-verification-nbfzy6=qJc3ubUHgvoRszQXLBL5GvmyV
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