mastertechservice.com

Valid Email Server
Domain Lookup › mastertechservice.com

Domain Overview

DNS: ✓ 2d ago Checker: ✓ 2d ago
mastertechservice.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-18 13:46:22 UTC · ↺ Refresh

MX Hostnames

  • mastertechservice-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 192.124.249.114 ↩ cloudproxy10114.sucuri.net

Mail Server IPs

  • 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
  • 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
  • 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
  • 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
  • 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com

SOA Record

Raw SOA ns39.domaincontrol.com dns.jomax.net 2019121001 28800 7200 604800 600
Primary NS (mname)
ns39.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2019121001
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns39.domaincontrol.com
ns40.domaincontrol.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

4 records
  • google-site-verification=uen4Oxk79LEyyn_6ZmPbuPo2HPkQf_COGMVC-HDrWog
  • google-site-verification=c6LP0z3SGSg-kIeDJcqYWQ1RUh-nVjdvAEl9rsVugqc
  • NETORGFT1568865.onmicrosoft.com
  • SPFv=spf1 include:spf.protection.outlook.com -all
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