rex-lumber.com

Valid Email Server
Domain Lookup › rex-lumber.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
rex-lumber.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-01 12:21:52 UTC · ↺ Refresh

MX Hostnames

  • rexlumber-com0i.mail.protection.outlook.com

MX Priorities

  • rexlumber-com0i.mail.protection.outlook.com: 1

A / AAAA Records

  • 216.92.152.26 ↩ rex-lumber.com

Mail Server IPs

  • 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
  • 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
  • 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
  • 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA ns51.1and1.com hostmaster.1and1.com 2016110500 28800 7200 604800 300
Primary NS (mname)
ns51.1and1.com
Admin Email (rname)
hostmaster@1and1.com
Serial
2016110500
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns51.1and1.com
ns52.1and1.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:159.66.240.102 ip4:72.32.133.225 ip4:40.143.34.134 include:_spf.psm.knowbe4.com include:spf.protection.outlook.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 ip4:159.66.240.102 ip4:72.32.133.225 ip4:40.143.34.134 include:_spf.psm.knowbe4.com include:spf.protection.outlook.com -all
  • MS=ms11327191
  • docusign=3310b381-5c59-417e-985a-a9b2c404ad96
  • duo_sso_verification=b1sTYkec8MeQS3NIC4MnvhEq2Pu4axVUMkC9OGY5xysRnKSr1P0EDYD1UjA5EfM5
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