Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kreis-heinsberg.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 09:28:14 UTC · ↺ Refresh
MX Hostnames
- mail11.regioit-aachen.de
- mail10.regioit-aachen.de
- mail12.regioit-aachen.de
MX Priorities
- mail10.regioit-aachen.de: 10
- mail12.regioit-aachen.de: 10
- mail11.regioit-aachen.de: 10
A / AAAA Records
- 85.13.147.91 ↩ dd22408.kasserver.com
Mail Server IPs
- 91.102.136.170 ↩ mail10.regioit-aachen.de
- 2a02:16f0::1:3 ↩ mail10.regioit-aachen.de
- 91.102.136.186 ↩ mail12.regioit-aachen.de
- 2a02:16f0::1:5 ↩ mail12.regioit-aachen.de
- 91.102.136.172 ↩ mail11.regioit-aachen.de
- 2a02:16f0::1:4 ↩ mail11.regioit-aachen.de
SOA Record
Raw SOA
dns01.regioit-aachen.de admin-tech-c.regioit.de 286 10800 3600 2419200 900
Primary NS (mname)
dns01.regioit-aachen.de
Admin Email (rname)
admin-tech-c@regioit.de
Serial
286
Refresh
10800s
Retry
3600s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
dns01.regioit-aachen.de
dns-relaix.regioit-aachen.de
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com include:_spf.perfora.net include:spf.owl-it.de ip4:109.68.229.224 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100; 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: 216 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- swisssign-check=VJ7sx1gGdrWziZxHWMASITQWWgY
- apple-domain-verification=XIah0WSDOzYnhvL9
- SPFv=spf1 mx include:spf.protection.outlook.com include:_spf.perfora.net include:spf.owl-it.de ip4:109.68.229.224 -all
- DMARCv=DMARC1; p=none; sp=none
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