Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
schierker-feuerstein.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 16:48:40 UTC · ↺ Refresh
MX Hostnames
- mail.schierker-feuerstein.de
MX Priorities
- mail.schierker-feuerstein.de: 10
A / AAAA Records
- 185.76.237.192 (no PTR)
- 2a00:1c98:60:1410::1:4ea9:e90c (no PTR)
Mail Server IPs
- 93.240.101.12 ↩ mail.schierker-feuerstein.de
SOA Record
Raw SOA
ns.inwx.de hostmaster.inwx.de 2026012100 10800 3600 604800 3600
Primary NS (mname)
ns.inwx.de
Admin Email (rname)
hostmaster@inwx.de
Serial
2026012100
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns2.inwx.de
ns3.inwx.eu
ns.inwx.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx a:mail.schierker-feuerstein.de include:spf.sendinblue.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; sp=none; rua=mailto:[email protected]!10m; ruf=mailto:[email protected]!10m; rf=afrf; pct=100; ri=86400
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]!10m
↳ Subdomain policy: none
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
3 records- Sendinblue-code:5116a72c8df9a0ac4bed159f87955049
- MS=ms31523537
- SPFv=spf1 a mx a:mail.schierker-feuerstein.de include:spf.sendinblue.com ~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 schierker-feuerstein.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits