vstb.ch

Valid Email Server
Domain Lookup › vstb.ch

Domain Overview

DNS: ✓ 4d ago Checker: ✓ 4d ago
vstb.ch
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-09-10 15:35:11 UTC · ↺ Refresh

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MX Hostnames

  • vstb-ch.mail.protection.outlook.com

MX Priorities

  • vstb-ch.mail.protection.outlook.com: 0

A / AAAA Records

  • 149.126.6.25 ↩ vsa-wadewu.cyon.net

Mail Server IPs

  • 52.101.91.153 ↩ mail-matpr04cu00101.inbound.protection.outlook.com
  • 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
  • 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
  • 52.101.181.153 ↩ mail-wa4pr04cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c967::8 ↩ mail-cpjpr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca38::a ↩ mail-wa4pr05cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::9 ↩ mail-db7pr03cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:ca48::c ↩ mail-miypr03cu00104.inbound.protection.outlook.com

SOA Record

Raw SOA ns01.vtx.ch dnsmaster.vtx.ch 2023091102 86400 7200 604800 86400
Primary NS (mname)
ns01.vtx.ch
Admin Email (rname)
dnsmaster@vtx.ch
Serial
2023091102
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns01.vtx.ch
ns02.vtx.ch

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:mx.dvbern.ch -all
📊 DNS lookups: 3/10
✓ 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

1 record
  • SPFv=spf1 include:spf.protection.outlook.com include:mx.dvbern.ch -all
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