Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sad-net.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 17:25:00 UTC · ↺ Refresh
MX Hostnames
- mailserv.regfish.com
MX Priorities
- mailserv.regfish.com: 0
A / AAAA Records
- 185.8.168.6 (no PTR)
Mail Server IPs
- 52.57.101.90 ↩ mailserv.regfish.com
SOA Record
Raw SOA
a.regfish-ns.net dns.regfish-ns.net 1769430932 28800 7200 604800 86400
Primary NS (mname)
a.regfish-ns.net
Admin Email (rname)
dns@regfish-ns.net
Serial
1769430932
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
c.regfish-ns.net
b.regfish-ns.net
a.regfish-ns.net
SPF Record
✗ MissingNo SPF record — domain is unprotected against spoofing.
⚠ No SPF record found. Email servers cannot verify authorized senders.
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
No TXT records found.
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 sad-net.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits