Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stahlnetz.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 06:40:28 UTC · ↺ Refresh
MX Hostnames
- mail.uscreen.net
MX Priorities
- mail.uscreen.net: 10
A / AAAA Records
- 37.130.139.153 ↩ recknagel-01.uscreen.net
Mail Server IPs
- 37.130.139.16 ↩ mail.uscreen.net
- 37.130.139.17 ↩ mail.uscreen.net
- 37.130.139.10 ↩ mail.uscreen.net
SOA Record
Raw SOA
a.ns14.net domains.uscreen.net 2025092300 3600 3600 1209600 3600
Primary NS (mname)
a.ns14.net
Admin Email (rname)
domains@uscreen.net
Serial
2025092300
Refresh
3600s
Retry
3600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
a.ns14.net
d.ns14.net
c.ns14.net
b.ns14.net
SPF Record
✓ Strict (-all)
v=spf1 a mx a:mail.stahlnetz.de include:mail.uscreen.net ip4:109.73.25.26/32 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; aspf=r; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
2 records- ahrefs-site-verification_cb60648688a220b49bd04a42b42000663f36931164f6cf40d6974884eadeff41
- SPFv=spf1 a mx a:mail.stahlnetz.de include:mail.uscreen.net ip4:109.73.25.26/32 -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 stahlnetz.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits