mrbuild.com

Valid Email Server
Domain Lookup › mrbuild.com

Domain Overview

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

Checked via [email protected] · 2026-03-19 11:17:07 UTC · ↺ Refresh

MX Hostnames

  • mrbuild-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 104.21.83.235 (no PTR)
  • 172.67.182.226 (no PTR)
  • 2606:4700:3037::ac43:b6e2
  • 2606:4700:3037::6815:53eb

Mail Server IPs

  • 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
  • 52.101.192.1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
  • 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
  • 52.101.190.2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
  • 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:c942:: ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
  • 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com

SOA Record

Raw SOA dara.ns.cloudflare.com dns.cloudflare.com 2398942655 10000 2400 604800 1800
Primary NS (mname)
dara.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398942655
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

dara.ns.cloudflare.com
rohin.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:secureserver.net ip4:68.66.226.75 include:spf.a2hosting.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate 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
  • SPFv=spf1 include:spf.protection.outlook.com include:secureserver.net ip4:68.66.226.75 include:spf.a2hosting.com ~all
  • NETORGFT4375813.onmicrosoft.com
  • ca3-481550fbd5f04b74afa49ad43a3ef07a
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