a-sign.dk

Valid Email Server
Domain Lookup › a-sign.dk
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
a-sign.dk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-10-30 10:43:26 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • mx.spamfilter.io

MX Priorities

  • mx.spamfilter.io: 10

A / AAAA Records

  • 188.40.29.39 ↩ dedi3039.your-server.de

Mail Server IPs

  • 89.188.78.66 ↩ node10.spamfilter.io
  • 46.36.212.37 ↩ node6.spamfilter.io
  • 46.36.212.38 ↩ node7.spamfilter.io
  • 89.188.78.64 ↩ node3.spamfilter.io
  • 46.36.212.36 ↩ node8.spamfilter.io
  • 46.36.212.34 ↩ node4.spamfilter.io
  • 89.188.78.65 ↩ node9.spamfilter.io
  • 94.231.106.12 ↩ node2.spamfilter.io

SOA Record

Raw SOA ns1.123hotel.dk hostmaster.curanet.dk 2026030401 14400 3600 1209600 300
Primary NS (mname)
ns1.123hotel.dk
Admin Email (rname)
hostmaster@curanet.dk
Serial
2026030401
Refresh
14400s
Retry
3600s
Expire
1209600s
Minimum TTL
300s

Nameservers (NS)

ns2.123hotel.dk
ns1.123hotel.dk

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.scannet.dk include:relay.kinstamailservice.com include:relay.mailchannels.net ip4:162.159.135.42 ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; adkim=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • SPFv=spf1 include:spf.scannet.dk include:relay.kinstamailservice.com include:relay.mailchannels.net ip4:162.159.135.42 ~all
  • ca3-8829ada53d9e44cbb950c916a82c4ea6
  • ca3-19551b1aa53342c28737b8b5305692a7
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 · Customize →
See demo & docs
Deep verification
Full email verification for a-sign.dk

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits