Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
aok-systems.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 16:53:35 UTC · ↺ Refresh
MX Hostnames
- mx1.aok.de
- mx2.aok.de
MX Priorities
- mx2.aok.de: 10
- mx1.aok.de: 10
A / AAAA Records
- 217.110.255.64 (no PTR)
Mail Server IPs
- 217.111.83.8 ↩ mx2.aok.de
- 217.110.254.8 ↩ mx1.aok.de
SOA Record
Raw SOA
ns2.aok.de domain-requests.colt.net 2025120414 7200 3600 604800 3600
Primary NS (mname)
ns2.aok.de
Admin Email (rname)
domain-requests@colt.net
Serial
2025120414
Refresh
7200s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns1.aok.de
ns3.aok.de
ns4.aok.de
ns2.aok.de
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.aok.de -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✗ None detectedNo 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- duo_sso_verification=F6cBs5lZZl2gojjE84jgIye7TAjMFXylsi3vc5GxemsN2YouLG7u82pxk0j7J2gG
- SPFv=spf1 include:_spf.aok.de -all
- atlassian-domain-verification=Gc/w6aH738Lat7CAp0F99xyM/b0CaWBiqB834G0LD6CojSBVfoNIoKwwehS084rs
- MS=ms42074338
- miro-verification=7f48a1d6c5e1c54cd6eac1601a82f9d6ac53d4c5
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