osius.com

Valid Email Server
Domain Lookup › osius.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
osius.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-21 06:11:02 UTC · ↺ Refresh

MX Hostnames

  • osius-com.mail.protection.outlook.com

MX Priorities

  • osius-com.mail.protection.outlook.com: 10

A / AAAA Records

  • 16.15.183.210 (no PTR)
  • 16.15.191.143 (no PTR)
  • 16.15.228.198 (no PTR)
  • 54.231.225.37 ↩ s3-website-us-east-1.amazonaws.com
  • 16.15.223.251
  • 54.231.138.229
  • 52.216.43.109
  • 16.15.183.159

Mail Server IPs

  • 52.101.124.117 ↩ mail-tydpr03cu00105.inbound.protection.outlook.com
  • 52.101.137.0 ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
  • 52.101.157.80 ↩ mail-os8pr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:cc09:: ↩ mail-sg2pr03cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:cc1a::8 ↩ mail-tydpr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:cc1f::4 ↩ mail-os8pr02cu00104.inbound.protection.outlook.com

SOA Record

Raw SOA ns-453.awsdns-56.com awsdns-hostmaster.amazon.com 2020110701 7200 900 1209600 86400
Primary NS (mname)
ns-453.awsdns-56.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
2020110701
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-839.awsdns-40.net
ns-1134.awsdns-13.org
ns-1873.awsdns-42.co.uk
ns-453.awsdns-56.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

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

All TXT Records

4 records
  • SPFv=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com -all
  • MS=ms42618771
  • lqm3v2fe504t8r1lphie7ski5v
  • rM5xnnNGQwPaxDNEEkbthAo1F6WPjVGq3sLrmjk6lnu8MXhdhquJ2/FFoh7eh0pL1h1QYp/0THOixmPAxqVHRg==
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