t-systems.com.mx

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
t-systems.com.mx
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-06-16 04:45:20 UTC · ↺ Refresh

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MX Hostnames

  • mailin.ng.telekom.net

MX Priorities

  • mailin.ng.telekom.net: 100

A / AAAA Records

  • 80.158.66.24 (no PTR)

Mail Server IPs

  • 3.71.246.67 ↩ ec2-3-71-246-67.eu-central-1.compute.amazonaws.com
  • 3.126.204.238 ↩ ec2-3-126-204-238.eu-central-1.compute.amazonaws.com

SOA Record

Raw SOA ns1.brandshelter.com tech.brandshelter.com 2026022500 10800 3600 604800 300
Primary NS (mname)
ns1.brandshelter.com
Admin Email (rname)
tech@brandshelter.com
Serial
2026022500
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns5.brandshelter.us
ns1.brandshelter.com
ns3.brandshelter.info
ns2.brandshelter.de
ns4.brandshelter.net

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.telekom.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1;p=none;rua=mailto:[email protected];ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 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

3 records
  • _telesec-domain-validation=276920_2020-01-30_r3K5h5VxI6vdxFIDnZE4xnHl1qLSMj3JTidgcqAxVylFAhlnkz
  • ciscocidomainverification=6bd78d4498c839c8bd5be7e78577105470b32dd2ed16e438f2f31e1b036ab85a
  • SPFv=spf1 include:_spf.telekom.com ~all
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