tecsud.com

Valid Email Server
Domain Lookup › tecsud.com

Domain Overview

DNS: ✓ 1mo ago Checker: ✓ 1mo ago
tecsud.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-06 15:20:09 UTC · ↺ Refresh

MX Hostnames

  • tecsud-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 62.72.50.48 (no PTR)
  • 2a02:4780:b:1203::29fc:2aea:2 (no PTR)

Mail Server IPs

  • 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
  • 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
  • 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
  • 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.dns-parking.com dns.hostinger.com 2026040201 10000 2400 604800 600
Primary NS (mname)
ns1.dns-parking.com
Admin Email (rname)
dns@hostinger.com
Serial
2026040201
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns1.dns-parking.com
ns2.dns-parking.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:one.zoho.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

✓ 3 found
selector1._domainkey
selector2._domainkey
default._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

3 records
  • v=verifydomain MS=5604750
  • google-site-verification=nf8L3dChBpyefgZZfDQosvLIGJe2zE4CgV8lstRrOU8
  • SPFv=spf1 include:spf.protection.outlook.com include:one.zoho.com -all
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