Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
linuswittich.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 06:53:06 UTC · ↺ Refresh
MX Hostnames
- backupmx.wittich.de
- mail-in.wittich.de
MX Priorities
- mail-in.wittich.de: 10
- backupmx.wittich.de: 20
A / AAAA Records
- 176.94.150.18 (no PTR)
Mail Server IPs
- 176.94.150.16 ↩ mail-in.wittich.de
- 212.18.211.21 ↩ backupmx.wittich.de
SOA Record
Raw SOA
ns1.bw-networx.net hostmaster.bw-networx.net 2016021892 28800 7200 604800 86400
Primary NS (mname)
ns1.bw-networx.net
Admin Email (rname)
hostmaster@bw-networx.net
Serial
2016021892
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns3.bw-networx.net
ns1.bw-networx.net
ns2.bw-networx.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:87.129.182.0/27 a:mail-out.wittich.de a:proteus.wittich.de a:mail.bw-networx.net ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 ip4:87.129.182.0/27 a:mail-out.wittich.de a:proteus.wittich.de a:mail.bw-networx.net ~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 linuswittich.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits