tshk.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
tshk.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-21 07:37:15 UTC · ↺ Refresh

MX Hostnames

  • tshk-de.mail.protection.outlook.com

MX Priorities

  • tshk-de.mail.protection.outlook.com: 10

A / AAAA Records

  • 212.97.109.248 ↩ rev-97-109-248.gbc.de

Mail Server IPs

  • 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
  • 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com
  • 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
  • 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com

SOA Record

Raw SOA ns.gbc.systems support.gbc.net 2024101013 3600 900 1209600 300
Primary NS (mname)
ns.gbc.systems
Admin Email (rname)
support@gbc.net
Serial
2024101013
Refresh
3600s
Retry
900s
Expire
1209600s
Minimum TTL
300s

Nameservers (NS)

ns.gbc.systems
ns.gbc.green
ns.gbc.jetzt
ns.gbc.red
ns.gbc.gmbh

SPF Record

✓ Strict (-all)
v=spf1 ip4:194.25.47.128/28 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

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

2 records
  • SPFv=spf1 ip4:194.25.47.128/28 include:spf.protection.outlook.com -all
  • _vga0obvsso2ih95z3v4ni219o6wys2h
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