Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mariokalweit.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 22:36:59 UTC · ↺ Refresh
MX Hostnames
- mail.hostinc.info
MX Priorities
- mail.hostinc.info: 10
A / AAAA Records
- 88.99.6.182 ↩ hosting4.hostinc.info
Mail Server IPs
- 88.99.6.183 ↩ mail.hostinc.info
SOA Record
Raw SOA
ns1.hostinc.info postmaster.hostinc.info 2024092701 7200 540 1209600 86400
Primary NS (mname)
ns1.hostinc.info
Admin Email (rname)
postmaster@hostinc.info
Serial
2024092701
Refresh
7200s
Retry
540s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.hostinc.info
ns1.hostinc.info
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=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
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 mx -all
- google-site-verification=YkIn4RyWWi4Nmt-hWaA01mnYiBU-Ckr7800utAULwwk
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 mariokalweit.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits