smarttechcontracting.com

Valid Email Server
Domain Lookup › smarttechcontracting.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
smarttechcontracting.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 00:15:13 UTC · ↺ Refresh

MX Hostnames

  • smarttechcontracting-com.mail.protection.outlook.com

MX Priorities

No priority data.

A / AAAA Records

  • 52.252.74.253

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

ns4-01.azure-dns.info
ns1-01.azure-dns.com
ns2-01.azure-dns.net
ns3-01.azure-dns.org

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf-us.emailsignatures365.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1

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

All TXT Records

5 records
  • rippling-domain-verification=55a5ffb0d2b8bb02
  • _ua40ubl6hdorsrf8d94w2tu19qgeh82
  • ca3-ee6fc99fd11a41c5bd3f4d7871cbe1cd
  • SPFv=spf1 include:spf.protection.outlook.com include:spf-us.emailsignatures365.com -all
  • _et6qtcutxp1zgg17t5sb9uhwabjee0i
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