stbib-koeln.de

Valid Email Server
Domain Lookup › stbib-koeln.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
stbib-koeln.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-01 17:08:10 UTC · ↺ Refresh

MX Hostnames

  • srelay2.netcologne.de
  • srelay1.netcologne.de

MX Priorities

  • srelay1.netcologne.de: 10
  • srelay2.netcologne.de: 10

A / AAAA Records

  • 194.8.216.2 ↩ www.stbib-koeln.de

Mail Server IPs

  • 81.173.193.60 ↩ srelay1.netcologne.de
  • 2001:4dd0:100:1020:25:b2a:2:1 ↩ srelay1.netcologne.de
  • 81.173.193.63 ↩ srelay2.netcologne.de
  • 2001:4dd0:100:1020:25:b2a:2:2 ↩ srelay2.netcologne.de

SOA Record

Raw SOA dns11.netcologne.de hostmaster.netcologne.de 2025121708 28800 7200 604800 3600
Primary NS (mname)
dns11.netcologne.de
Admin Email (rname)
hostmaster@netcologne.de
Serial
2025121708
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

dns13.netcologne.de
dns12.netcologne.de
dns14.netcologne.de
dns11.netcologne.de

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:194.8.216.6 ip4:81.173.193.132 ip4:81.173.193.131 include:spf-policy.mailrelay-out.netcologne.de ip6:2001:4dd0:100:1020:25:a2b:0:2 ip6:2001:4dd0:100:1020:25:b2a:2:1 ip6:2001:4dd0:100:1020:25:b2a:2:2 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; ruf=mailto:[email protected]; rua=mailto:[email protected]; fo=1; aspf=r
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · 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

2 records
  • SPFv=spf1 mx ip4:194.8.216.6 ip4:81.173.193.132 ip4:81.173.193.131 include:spf-policy.mailrelay-out.netcologne.de ip6:2001:4dd0:100:1020:25:a2b:0:2 ip6:2001:4dd0:100:1020:25:b2a:2:1 ip6:2001:4dd0:100:1020:25:b2a:2:2 -all
  • MS=A030481D32028308E4EFD6C74474366F7741DC52
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