lukasgruber.at

Valid Email Server
Domain Lookup › lukasgruber.at

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
lukasgruber.at
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-14 02:03:06 UTC · ↺ Refresh

MX Hostnames

  • mail.lukasgruber.at
  • mx1508.netcup.net

MX Priorities

  • mx1508.netcup.net: 50
  • mail.lukasgruber.at: 10

A / AAAA Records

  • 89.58.21.6 ↩ a1506.netcup.net
  • 2a0a:4cc0:5:7c::19:2239 (no PTR)

Mail Server IPs

  • 89.58.21.8 ↩ mx1508.netcup.net
  • 2a0a:4cc0:4:3:6485:16ff:fe9c:d984 ↩ mx1508.netcup.net

SOA Record

Raw SOA root-dns.netcup.net dnsadmin.netcup.net 2025090910 7200 7200 1209600 7200
Primary NS (mname)
root-dns.netcup.net
Admin Email (rname)
dnsadmin@netcup.net
Serial
2025090910
Refresh
7200s
Retry
7200s
Expire
1209600s
Minimum TTL
7200s

Nameservers (NS)

root-dns.netcup.net
third-dns.netcup.net
second-dns.netcup.net

SPF Record

✓ Soft Fail (~all)
v=spf1 mx a include:_spf.webhosting.systems ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

1 record
  • SPFv=spf1 mx a include:_spf.webhosting.systems ~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 lukasgruber.at

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

No credit card required
Get 1,000 Free Credits