Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
wzw.ch
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-09-11 05:58:08 UTC · ↺ Refresh
MX Hostnames
- wzw-ch.mail.protection.outlook.com
MX Priorities
- wzw-ch.mail.protection.outlook.com: 0
A / AAAA Records
- 216.198.79.1 (no PTR)
Mail Server IPs
- 52.101.185.13 ↩ mail-zrzp278cu00205.inbound.protection.outlook.com
- 52.101.185.14 ↩ mail-zr1p278cu00206.inbound.protection.outlook.com
- 52.101.187.1 ↩ mail-gvap278cu00301.inbound.protection.outlook.com
- 52.101.185.12 ↩ mail-zrap278cu00304.inbound.protection.outlook.com
- 2a01:111:f403:ca3e::1 ↩ mail-gvap278cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca3c::2 ↩ mail-zr1p278cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca3c:: ↩ mail-zrap278cu00300.inbound.protection.outlook.com
- 2a01:111:f403:ca3c::1 ↩ mail-zrzp278cu00201.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.cyon.ch server.cyon.ch 2026070601 14400 1800 1209600 3600
Primary NS (mname)
ns1.cyon.ch
Admin Email (rname)
server@cyon.ch
Serial
2026070601
Refresh
14400s
Retry
1800s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns2.cyon.ch
ns1.cyon.ch
SPF Record
✓ Strict (-all)
v=spf1 ip4:217.67.132.10 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo 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
8 records- apple-domain-verification=XCYp9ZGJymastkNb
- 941d961f88c02956ddb3c1f629128bd6e478d40a75b19b1107149eb1cfa2984
- openai-domain-verification=dv-YhAEqPmzYoWP8QVw6XIcIkVt
- MS=ms48110528
- SPFv=spf1 ip4:217.67.132.10 include:spf.protection.outlook.com -all
- openai-domain-verification=dv-kVTgDzS2QYWIJJ98X06C4i0R
- 1vQrHS8tw1nUuOdygm9T4WzJyUtq/UIismur1Y2xVxHsIgJdm8B9VAXUbnF0rOlwGU7cpkThzwCtv/P6iFOuqA==
- openai-domain-verification?dv-YhAEqPmzYoWP8QVw6XIclkVt
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for wzw.ch
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits