gug-elektrobau.de

Valid Email Server
Domain Lookup › gug-elektrobau.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
gug-elektrobau.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-31 18:47:49 UTC · ↺ Refresh

MX Hostnames

  • mail.mdlink.net
  • mail.mdlink.de
  • mail.gug-elektrobau.de

MX Priorities

  • mail.mdlink.net: 30
  • mail.mdlink.de: 50
  • mail.gug-elektrobau.de: 10

A / AAAA Records

  • 213.211.192.45 ↩ natter.mdlink.de

Mail Server IPs

  • 213.211.192.40 ↩ mail.mdlink.net
  • 194.45.154.35 ↩ mail.mdlink.de
  • 213.211.192.57 ↩ mail.mdlink.de
  • 2a03:5080:6200:2::3:56 ↩ mail.mdlink.de
  • 213.211.195.110 ↩ gw-asg.core.mdlink.net

SOA Record

Raw SOA ns1.mdlink.de hostmaster.ns1.mdlink.de 2025080701 21600 7200 1209600 86400
Primary NS (mname)
ns1.mdlink.de
Admin Email (rname)
hostmaster@ns1.mdlink.de
Serial
2025080701
Refresh
21600s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns2.mdlink.de
ns3.mdlink.de
ns4.mdlink.de
ns1.mdlink.de

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:213.211.195.110/32 ip4:213.211.192.40/32 ip4:213.211.192.57/32 ip4:194.45.154.35/32 ip4:213.211.192.38/32 ip6:2a03:5080:6200:2::3:56 a:mail.mdlink.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict 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 ip4:213.211.195.110/32 ip4:213.211.192.40/32 ip4:213.211.192.57/32 ip4:194.45.154.35/32 ip4:213.211.192.38/32 ip6:2a03:5080:6200:2::3:56 a:mail.mdlink.net -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 gug-elektrobau.de

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

No credit card required
Get 1,000 Free Credits