Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mietbeginn.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 13:07:38 UTC · ↺ Refresh
MX Hostnames
- host22.networkinvest.de
MX Priorities
- host22.networkinvest.de: 10
A / AAAA Records
- 213.239.241.51 ↩ host22.networkinvest.de
Mail Server IPs
- 213.239.241.51 ↩ host22.networkinvest.de
- 2a01:4f8:a0:51c2::2 ↩ host22.networkinvest.de
SOA Record
Raw SOA
ns1.networkinvest.net support.networkinvest.de 2025082703 39940 14400 604800 43200
Primary NS (mname)
ns1.networkinvest.net
Admin Email (rname)
support@networkinvest.de
Serial
2025082703
Refresh
39940s
Retry
14400s
Expire
604800s
Minimum TTL
43200s
Nameservers (NS)
ns2.networkinvest.net
ns1.networkinvest.net
ns4.networkinvest.net
ns3.networkinvest.net
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a ip4:213.239.241.0/24 ip6:2a01:4f8:a0::/48 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 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- apple-domain-verification=tDfczTVCRPDhsDvlrrOBcBmPKMxV3WWaTnyu12CM6Mo
- SPFv=spf1 mx a ip4:213.239.241.0/24 ip6:2a01:4f8:a0::/48 ~all
- google-site-verification=4kORPQ80-fRbqP6PHP8PwRBAovWelWzUS4Kobt9tO30
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 mietbeginn.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits