Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
koeln-marathon.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 23:31:08 UTC · ↺ Refresh
MX Hostnames
- mail.koeln-marathon.de
MX Priorities
- mail.koeln-marathon.de: 10
A / AAAA Records
- 185.105.252.211 ↩ koelnm00.fe.rzob.gocept.net
- 2a02:248:101:62::14d3 ↩ koelnm00.fe.rzob.gocept.net
Mail Server IPs
- 185.105.252.226 ↩ mail.koeln-marathon.de
- 2a02:248:101:62::14e7 ↩ mail.koeln-marathon.de
SOA Record
Raw SOA
ns3.fcio.net support.flyingcircus.io 1 10800 3600 604800 3600
Primary NS (mname)
ns3.fcio.net
Admin Email (rname)
support@flyingcircus.io
Serial
1
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns3.fcio.net
ns4.fcio.net
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ip4:185.105.252.211 ip6:2a02:248:101:62::14d3 ip4:185.105.252.226 ip6:2a02:248:101:62::14e7 a:cl042-1.treck.de a:cl042-2.treck.de a:cl042-3.treck.de a:mailer.treck.de include:spf.crsend.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- google-site-verification=8qmam-RW1inFKKjC-VGCJwP0rmVmKwJZ3xs0xtAa_Z0
- SPFv=spf1 mx ip4:185.105.252.211 ip6:2a02:248:101:62::14d3 ip4:185.105.252.226 ip6:2a02:248:101:62::14e7 a:cl042-1.treck.de a:cl042-2.treck.de a:cl042-3.treck.de a:mailer.treck.de include:spf.crsend.com ~all
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