Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
katjaberger.nl
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 19:04:53 UTC · ↺ Refresh
MX Hostnames
- mx-in-3.webreus.nl
- mx-in-2.webreus.nl
- mx-in-1.webreus.nl
- mx-in-4.webreus.nl
MX Priorities
- mx-in-1.webreus.nl: 10
- mx-in-2.webreus.nl: 10
- mx-in-4.webreus.nl: 3
- mx-in-3.webreus.nl: 3
A / AAAA Records
- 46.235.40.84 (no PTR)
- 2a00:d640:d640:9999::2eeb:2854 (no PTR)
Mail Server IPs
- 46.235.43.246 ↩ mx-in-1.webreus.nl
- 2a00:d640:d640::43:246 ↩ mx-in-1.webreus.nl
- 46.235.44.246 ↩ mx-in-2.webreus.nl
- 2a00:d640:d640::44:246 ↩ mx-in-2.webreus.nl
- 46.235.44.245 ↩ mx-in-4.webreus.nl
- 2a00:d640:d640::44:245 ↩ mx-in-4.webreus.nl
- 46.235.43.245 ↩ mx-in-3.webreus.nl
- 2a00:d640:d640::43:245 ↩ mx-in-3.webreus.nl
SOA Record
Raw SOA
ns10.webreus.net zonemaster.katjaberger.nl 2023011601 10800 3600 604800 3600
Primary NS (mname)
ns10.webreus.net
Admin Email (rname)
zonemaster@katjaberger.nl
Serial
2023011601
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns10.webreus.net
ns11.webreus.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.webreus.email -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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 include:spf.webreus.email -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 katjaberger.nl
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits