Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
lenzw.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 03:04:39 UTC · ↺ Refresh
MX Hostnames
- mail.umask.pw
MX Priorities
- mail.umask.pw: 10
A / AAAA Records
- 178.63.75.174 ↩ mail.umask.pw
- 2a01:4f8:121:2482:174::3 (no PTR)
Mail Server IPs
- 178.63.75.174 ↩ mail.umask.pw
- 2a01:4f8:121:2482:174::7 (no PTR)
SOA Record
Raw SOA
ns.lenzw.de mail.lenzw.de 2017083839 86400 10800 3600000 600
Primary NS (mname)
ns.lenzw.de
Admin Email (rname)
mail@lenzw.de
Serial
2017083839
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
600s
Nameservers (NS)
ns.lenzw.de
ns2.afraid.org
SPF Record
✓ Strict (-all)
v=spf1 mx a -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 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
2 records- google-site-verification=fvK7VE1Ed22DP5Wc9lp-chHcHwQpKYxSHrR2DFDLjWA
- SPFv=spf1 mx a -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 lenzw.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits