oiusa.com

Valid Email Server
Domain Lookup › oiusa.com

Domain Overview

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

Checked via [email protected] · 2026-03-19 12:43:10 UTC · ↺ Refresh

MX Hostnames

  • oiusa-com.mail.eo.outlook.com

MX Priorities

  • oiusa-com.mail.eo.outlook.com: 10

A / AAAA Records

  • 141.193.213.10 (no PTR)

Mail Server IPs

  • 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
  • 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
  • 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
  • 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com

SOA Record

Raw SOA ns57.worldnic.com namehost.worldnic.com 125111414 10800 3600 604800 3600
Primary NS (mname)
ns57.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125111414
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns57.worldnic.com
ns58.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:63.238.52.119 ip4:184.180.126.243 ip4:74.114.104.178 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
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

5 records
  • qdigd92uouf38pdiu2uj15h0u4
  • SPFv=spf1 ip4:63.238.52.119 ip4:184.180.126.243 ip4:74.114.104.178 include:spf.protection.outlook.com -all
  • MS=0717C94A015EA1C342DE97B8EE8C2A8B9208B97B
  • ntsq1g2q74cjnvlr67bnsitjac
  • google-site-verification=ud9eZGqe2x0hjYln70ZtUSbMY0m3dI6M-t64TuI5ldY
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