tech21.com

Valid Email Server
Domain Lookup › tech21.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
tech21.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-06-09 11:59:15 UTC · ↺ Refresh

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MX Hostnames

  • tech21-com.mail.protection.outlook.com

MX Priorities

  • tech21-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 23.227.38.65 ↩ myshopify.com

Mail Server IPs

  • 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
  • 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
  • 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
  • 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::8 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA elmo.ns.cloudflare.com dns.cloudflare.com 2405914585 10000 2400 604800 1800
Primary NS (mname)
elmo.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2405914585
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

nelly.ns.cloudflare.com
elmo.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:spf.everycloudtech.com include:mail.zendesk.com ip4:5.79.62.40 ip4:5.79.62.189 ip4:167.89.99.179 ip4:168.245.40.44 ip4:149.72.147.186 ip4:167.89.101.239 ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

17 records
  • t2m68nomi5o721ur3t0to4tujh
  • SPFv=spf1 include:spf.protection.outlook.com include:spf.everycloudtech.com include:mail.zendesk.com ip4:5.79.62.40 ip4:5.79.62.189 ip4:167.89.99.179 ip4:168.245.40.44 ip4:149.72.147.186 ip4:167.89.101.239 ~all
  • 1password-site-verification=4O2NAF4NPNCU3ARYYXGOD45JRU
  • H9z3jpK4HbrwX8FMx3/kNODfgmh4mQsp3LtjTEKd4BOHZw+TqcN4b8yndxsQcWC2HLwGzIGph0OSwUwgAT/Irw==
  • MS=ms60743318
  • apple-domain-verification=5U060VZ6I9XOzhSE
  • facebook-domain-verification=lwlvbs55nombhsdkxsearyrhnu3ey4
  • google-site-verification=Ir_ilTB7jeDLMCkutNRbSdb5BNK4S6htq-0dZHCPf2M
  • google-site-verification=NY5SWrVRr5DBoW60gEdgc4PWemydzQC_Bx72un68-Lo
  • hi858ih6ussfhsgo2hl4q51i8j
  • klaviyo-site-verification=QRDub8
  • klaviyo-site-verification=W3bREP
  • klaviyo-site-verification=XNcgVD
  • klaviyo-site-verification=XZ5fXh
  • o2h5d2e3l9l41955rarjp32hv4
  • shopify-verification-code=OT5iWfBVOOLeBzcmAMaAzH1JT4o041
  • solarwinds-service0desk-verification=d5842dda0a77d089aa8aae2a77e742cf
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