composystem.uy

Valid Email Server
Domain Lookup › composystem.uy
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
composystem.uy
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-20 21:38:43 UTC · ↺ Refresh

MX Hostnames

  • composystem-uy.mail.protection.outlook.com

MX Priorities

No priority data.

A / AAAA Records

  • 52.225.131.61

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

ns1.bdm.microsoftonline.com
ns2.bdm.microsoftonline.com
ns3.bdm.microsoftonline.com
ns4.bdm.microsoftonline.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

2 records
  • mscid=fJ/4xUdzI3lkxpqb2abJf94aad6v4pyhlBEqI7Mn/Bvd5TTuyaZSKxgWy7fuXsKRHuD0FBqR9cF1J4DQYBgcIA==
  • SPFv=spf1 include:spf.protection.outlook.com -all
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