Domain Overview
DNS: ✓ 1mo ago
Checker: ✓ 1mo ago
yukawa.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-06 15:54:45 UTC · ↺ Refresh
MX Hostnames
- mail.yukawa.de
MX Priorities
- mail.yukawa.de: 10
A / AAAA Records
- 198.202.211.1 (no PTR)
Mail Server IPs
- 213.133.104.177 ↩ www177.your-server.de
SOA Record
Raw SOA
ns1.first-ns.de dns.hetzner.com 2026021300 14400 1800 604800 86400
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
dns@hetzner.com
Serial
2026021300
Refresh
14400s
Retry
1800s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
robotns3.second-ns.com
ns1.first-ns.de
robotns2.second-ns.de
SPF Record
✓ Strict (-all)
v=spf1 mx ip6:2a01:4f8:d0a:2139::2 ip4:213.133.104.177 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;sp=none;pct=50;adkim=r;aspf=r;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: none
⚠ Policy applies to 50% of failing messages only
DKIM Selectors
✗ None detectedNo 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- MS=ms58786087
- cdn.webflow.com
- SPFv=spf1 mx ip6:2a01:4f8:d0a:2139::2 ip4:213.133.104.177 -all
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
See demo & docs
Deep verification
Full email verification for yukawa.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits