techmaster.us

Valid Email Server
Live data โ€” DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: โšก live Checker: โšก live
techmaster.us
Yes
โœ“ Yes
Outlook
No
No
โš  Yes
No
No
Did you mean: [email protected]

Checked via [email protected] ยท 2026-05-21 00:56:47 UTC ยท โ†บ Refresh

MX Hostnames

  • techmaster-us.mail.protection.outlook.com

MX Priorities

No priority data.

A / AAAA Records

  • 172.96.187.237

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

ns50.domaincontrol.com
ns49.domaincontrol.com

SPF Record

โœ“ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
๐Ÿ“Š DNS lookups: 1/10
โœ“ Hard fail (-all) โ€” strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine โ€” good protection (failing mail goes to spam)
๐Ÿ“‹ SPF alignment: Relaxed ยท DKIM alignment: Relaxed
โš  No aggregate reports (rua= not set)

DKIM Selectors

โœ“ 3 found
selector1._domainkey
selector2._domainkey
mail._domainkey
โœ“ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

4 records
  • brevo-code:a81194e87cf08268c1b32c60da90d807
  • google-site-verification=phUu261m0QKbXIlcRxz4ofjeMZ9FP1c0wahQB0fWGZY
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • linkedin-site-verification=e476383a-fac9-47e7-9e19-3becf7148baf
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