koe-rostock.de

Valid Email Server
Domain Lookup › koe-rostock.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
koe-rostock.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-22 21:18:47 UTC · ↺ Refresh

MX Hostnames

  • mail.koe-rostock.de

MX Priorities

  • mail.koe-rostock.de: 10

A / AAAA Records

  • 157.90.6.102 ↩ web40.isuma.de

Mail Server IPs

  • 217.86.147.127 ↩ mail.koe-rostock.de

SOA Record

Raw SOA ns40.isuma.de kontakt.isuma.de 2026030901 10800 3600 604800 10800
Primary NS (mname)
ns40.isuma.de
Admin Email (rname)
kontakt@isuma.de
Serial
2026030901
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s

Nameservers (NS)

ns51.isuma.de
ns50.isuma.de
ns40.isuma.de

SPF Record

✓ Strict (-all)
v=spf1 a mx a:mail.koe-rostock.de include:_spf40.isuma.de include:spf.protection.outlook.com ip4:217.86.147.127 -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=s; aspf=s
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

5 records
  • citrix.mobile.ads.otp=j86xb94kg1mu77gxetcvspj
  • apple-domain-verification=wDJE35AmRN2jx0g2
  • MS=ms73456514
  • google-site-verification=iR0ppwOIX2j59nKMFGLWUtPLlWQ-_MVCugdwHsRg8U0
  • SPFv=spf1 a mx a:mail.koe-rostock.de include:_spf40.isuma.de include:spf.protection.outlook.com ip4:217.86.147.127 -all
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