Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kraemer-duisburg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 04:19:00 UTC · ↺ Refresh
MX Hostnames
- kraemer.in.tmes.trendmicro.eu
MX Priorities
- kraemer.in.tmes.trendmicro.eu: 10
A / AAAA Records
- 185.55.70.81 (no PTR)
Mail Server IPs
- 18.185.115.147 ↩ in.tmes.trendmicro.eu
- 18.185.115.146 ↩ in.tmes.trendmicro.eu
- 18.185.115.145 ↩ in.tmes.trendmicro.eu
SOA Record
Raw SOA
neos.hkn.de hostmaster.hkn.de 1741779133 28800 7200 604800 300
Primary NS (mname)
neos.hkn.de
Admin Email (rname)
hostmaster@hkn.de
Serial
1741779133
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
neos.hkn.de
sns02.hkn.de
SPF Record
✓ Strict (-all)
v=spf1 a a:mailgate.kraemer-duisburg.de a:firewall.kraemer-duisburg.de include:servers.mcsv.net include:spf.tmes.trendmicro.com include:_spf.google.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 a a:mailgate.kraemer-duisburg.de a:firewall.kraemer-duisburg.de include:servers.mcsv.net include:spf.tmes.trendmicro.com include:_spf.google.com -all
- tmes=ea1153f3dc5a40ea4bf3b1b11decd333
- apple-domain-verification=eT1uwm8WokeY1Hou
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 kraemer-duisburg.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits