Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
keramaix.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 17:41:45 UTC · ↺ Refresh
MX Hostnames
- mx01.tsitservice.de
MX Priorities
- mx01.tsitservice.de: 10
A / AAAA Records
- 217.160.0.139 ↩ 217-160-0-139.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::22c ↩ 2001-08d8-100f-f000-0000-0000-0000-022c.elastic-ssl.ui-r.com
Mail Server IPs
- 37.120.179.30 ↩ mx01.tsitservice.de
SOA Record
Raw SOA
ns1120.ui-dns.org hostmaster.kundenserver.de 2016103106 28800 7200 604800 300
Primary NS (mname)
ns1120.ui-dns.org
Admin Email (rname)
hostmaster@kundenserver.de
Serial
2016103106
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1120.ui-dns.com
ns1120.ui-dns.de
ns1120.ui-dns.org
ns1120.ui-dns.biz
SPF Record
✓ Strict (-all)
v=spf1 a mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 a mx -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 keramaix.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits