Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
john4782.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-09-04 17:47:24 UTC · ↺ Refresh
MX Hostnames
- mx.olten.email
MX Priorities
- mx.olten.email: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 159.69.139.250 ↩ mx.olten.email
SOA Record
Raw SOA
agustin.ns.cloudflare.com dns.cloudflare.com 2412105350 10000 2400 604800 1800
Primary NS (mname)
agustin.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2412105350
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
agustin.ns.cloudflare.com
ursula.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; pct=80; ruf=mailto:[email protected]; rua=mailto:[email protected]; p=reject; adkim=r; aspf=r
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 80% of failing messages only
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 a mx -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 · Customize →
See demo & docs
Deep verification
Full email verification for john4782.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits