grk.de

Valid Email Server
Domain Lookup › grk.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
grk.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-04 13:55:28 UTC · ↺ Refresh

MX Hostnames

  • mx01.kundenserver.de
  • mail.grk.de
  • grk-de.mail.protection.outlook.com
  • mx00.kundenserver.de

MX Priorities

  • mail.grk.de: 10
  • mx01.kundenserver.de: 30
  • mx00.kundenserver.de: 20
  • grk-de.mail.protection.outlook.com: 0

A / AAAA Records

  • 217.160.0.71
  • 2001:8d8:100f:f000::2c8

Mail Server IPs

  • 217.72.192.67 ↩ mx01.kundenserver.de
  • 212.227.15.41 ↩ mx00.kundenserver.de
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com

SOA Record

Raw SOA ns1103.ui-dns.biz hostmaster.1and1.com 2017080836 28800 7200 604800 300
Primary NS (mname)
ns1103.ui-dns.biz
Admin Email (rname)
hostmaster@1and1.com
Serial
2017080836
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1042.ui-dns.org
ns1103.ui-dns.biz
ns1058.ui-dns.com
ns1084.ui-dns.de

SPF Record

✓ Soft Fail (~all)
v=spf1 a mx ip4:85.232.31.90 include:_spf.getresponse.com include:spf.protection.outlook.com include:spf-de.emailsignatures365.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; ruf=mailto:[email protected]; fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1

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

All TXT Records

4 records
  • apple-domain-verification=8Oo8TooPQmjkFmgf
  • amazon-business-verification=3e1c1357a235819bed1fe8c79b316caa32fc2b898967daf8396e146e8d3b141b
  • MS=ms83608305
  • SPFv=spf1 a mx ip4:85.232.31.90 include:_spf.getresponse.com include:spf.protection.outlook.com include:spf-de.emailsignatures365.com ~all
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