a1doorcompany.com

Valid Email Server
Domain Lookup › a1doorcompany.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
a1doorcompany.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 18:49:37 UTC · ↺ Refresh

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MX Hostnames

  • a1doorcompany-com.mail.protection.outlook.com

MX Priorities

  • a1doorcompany-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 173.254.30.134 ↩ just2036.justhost.com

Mail Server IPs

  • 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
  • 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
  • 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
  • 52.101.10.10 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
  • 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.justhost.com root.just2036.justhost.com 2025040400 86400 7200 3600000 300
Primary NS (mname)
ns1.justhost.com
Admin Email (rname)
root@just2036.justhost.com
Serial
2025040400
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
300s

Nameservers (NS)

ns2.justhost.com
ns1.justhost.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

✗ 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

1 record
  • SPFv=spf1 include:spf.protection.outlook.com -all
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