Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
alfred-rexroth.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 12:38:45 UTC · ↺ Refresh
MX Hostnames
- mail.alfred-rexroth.de
MX Priorities
- mail.alfred-rexroth.de: 10
A / AAAA Records
- 85.13.140.227 ↩ dd11622.kasserver.com
Mail Server IPs
- 80.155.184.50 ↩ mail.alfred-rexroth.de
SOA Record
Raw SOA
ns5.kasserver.com hostmaster.kasserver.com 2601061409 28800 7200 1209600 7200
Primary NS (mname)
ns5.kasserver.com
Admin Email (rname)
hostmaster@kasserver.com
Serial
2601061409
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
7200s
Nameservers (NS)
ns5.kasserver.com
ns6.kasserver.com
SPF Record
✓ Strict (-all)
v=spf1 mx a include:kasserver.com include:spf.protection.outlook.com ip4:80.155.184.50 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms64137611
- SPFv=spf1 mx a include:kasserver.com include:spf.protection.outlook.com ip4:80.155.184.50 -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 alfred-rexroth.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits