zwiback.ch

Valid Email Server
Domain Lookup › zwiback.ch

Domain Overview

DNS: ✓ 1mo ago Checker: ✓ 1mo ago
zwiback.ch
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-09-10 13:59:27 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 149.126.4.92 ↩ s083.cyon.net
  • 2a01:ab20:0:4::92 ↩ s083.cyon.net

Mail Server IPs

  • 52.101.73.126 ↩ mail-am8pr83cu00106.inbound.protection.outlook.com
  • 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
  • 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
  • 52.101.103.36 ↩ mail-miypr05cu00104.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::a ↩ mail-du0pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:c967::a ↩ mail-cpjpr05cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.cyon.ch server.cyon.ch 2024052300 86400 7200 3600000 86400
Primary NS (mname)
ns1.cyon.ch
Admin Email (rname)
server@cyon.ch
Serial
2024052300
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s

Nameservers (NS)

ns1.cyon.ch
ns2.cyon.ch

SPF Record

✓ Strict (-all)
v=spf1 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

✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

6 records
  • MS=ms33857674
  • google-site-verification=5OKqgv5pxIOP6wCEAGxXMyD1TAZHaqSMU7Gf45CYP2E
  • google-site-verification=zgXnKhX663rAkwsiWBmaP0L-_Mb8pTAlPo2ndQtJ0_I
  • google-site-verification=Ot9AkNXInf0ijP4nkbD33N78_yflc3TMI7ud9W82gaw
  • google-site-verification=RG158ZOFlRj7uENwJj8WYiWzzmnL6ei33dOPOIKdn-E
  • SPFv=spf1 include:spf.protection.outlook.com -all
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