masterair.com

Valid Email Server
Domain Lookup › masterair.com

Domain Overview

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

Checked via [email protected] · 2026-03-18 08:53:54 UTC · ↺ Refresh

MX Hostnames

  • masterair-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 216.239.38.21 ↩ any-in-2615.1e100.net
  • 216.239.34.21 ↩ any-in-2215.1e100.net
  • 216.239.36.21
  • 216.239.32.21
  • 2001:4860:4802:34::15
  • 2001:4860:4802:32::15
  • 2001:4860:4802:36::15
  • 2001:4860:4802:38::15

Mail Server IPs

  • 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
  • 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
  • 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
  • 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
  • 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA dns1.registrar-servers.com hostmaster.registrar-servers.com 1573478482 43200 3600 604800 3601
Primary NS (mname)
dns1.registrar-servers.com
Admin Email (rname)
hostmaster@registrar-servers.com
Serial
1573478482
Refresh
43200s
Retry
3600s
Expire
604800s
Minimum TTL
3601s

Nameservers (NS)

dns1.registrar-servers.com
dns2.registrar-servers.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:184.154.219.130 ip4:69.175.101.218 ip4:198.23.60.105 include:spf.protection.outlook.com include:mailgun.org a mx -all
📊 DNS lookups: 4/10
✓ 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

2 records
  • google-site-verification=RUJ8BqKS5yCWl5aoHImhNbtPQYY-FUJiW0RgNARRZUo
  • SPFv=spf1 ip4:184.154.219.130 ip4:69.175.101.218 ip4:198.23.60.105 include:spf.protection.outlook.com include:mailgun.org a mx -all
Full email verification for masterair.com

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