gkk-berlin.de

Valid Email Server
Domain Lookup › gkk-berlin.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
gkk-berlin.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-31 17:32:17 UTC · ↺ Refresh

MX Hostnames

  • mailgw.ec-group.org

MX Priorities

  • mailgw.ec-group.org: 10

A / AAAA Records

  • 5.22.145.121 ↩ relay.mail-forwarder.io
  • 5.22.145.16 ↩ relay.mail-forwarder.io
  • 2a00:18e0:5:3:dfe2:c743:85aa:61bc ↩ relay.mail-forwarder.io
  • 2a00:18e0:5:2:7577:4e4d:413b:f507 ↩ relay.mail-forwarder.io

Mail Server IPs

  • 212.87.39.42 ↩ mailgw.ec-group.org

SOA Record

Raw SOA ns1.domaindiscount24.net tech.key-systems.net 2025071402 10800 3600 604800 28800
Primary NS (mname)
ns1.domaindiscount24.net
Admin Email (rname)
tech@key-systems.net
Serial
2025071402
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
28800s

Nameservers (NS)

ns1.domaindiscount24.net
ns3.domaindiscount24.net
ns2.domaindiscount24.net

SPF Record

✓ Strict (-all)
v=spf1 mx include:spf1.ec-group.org include:spf2.ec-group.org include:agenturserver.de ip4:37.202.0.65 ip4:188.94.250.251 include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ 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

2 records
  • SPFv=spf1 mx include:spf1.ec-group.org include:spf2.ec-group.org include:agenturserver.de ip4:37.202.0.65 ip4:188.94.250.251 include:spf.protection.outlook.com -all
  • MS=ms75079616
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 gkk-berlin.de

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

No credit card required
Get 1,000 Free Credits