corps1.com

Valid Email Server
Domain Lookup › corps1.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
corps1.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-26 00:34:02 UTC · ↺ Refresh

MX Hostnames

  • corps1-com.mail.protection.outlook.com

MX Priorities

  • corps1-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 74.208.236.200 ↩ 74-208-236-200.elastic-ssl.ui-r.com
  • 2607:f1c0:100f:f000::200 ↩ 2607-f1c0-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
  • 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
  • 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
  • 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA ns1117.ui-dns.com hostmaster.1and1.com 2017011805 28800 7200 604800 300
Primary NS (mname)
ns1117.ui-dns.com
Admin Email (rname)
hostmaster@1and1.com
Serial
2017011805
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1117.ui-dns.com
ns1117.ui-dns.org
ns1117.ui-dns.de
ns1117.ui-dns.biz

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

✗ 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

3 records
  • apple-domain-verification=mTtH6QvApM1kafsr
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • MS=ms63386588
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