Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
troisdorf.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 14:23:47 UTC · ↺ Refresh
MX Hostnames
- gw11.civitec.de
- gw12.civitec.de
MX Priorities
- gw11.civitec.de: 10
- gw12.civitec.de: 10
A / AAAA Records
- 89.110.176.236 (no PTR)
Mail Server IPs
- 195.243.56.11 ↩ gw11.civitec.de
- 195.243.56.12 ↩ gw12.civitec.de
SOA Record
Raw SOA
dns01.regioit-aachen.de hostmaster.civitec.de 2023052555 3600 7200 3600000 7200
Primary NS (mname)
dns01.regioit-aachen.de
Admin Email (rname)
hostmaster@civitec.de
Serial
2023052555
Refresh
3600s
Retry
7200s
Expire
3600000s
Minimum TTL
7200s
Nameservers (NS)
dns01.regioit-aachen.de
dns-relaix.regioit-aachen.de
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:195.243.56.0/24 ip4:195.243.129.128/26 include:spf.regioit.de a:otc-de-spf.mms.t-systems-service.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected],mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
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
4 records- MS=8BCF9966641B3DDB92FBB19EA6143CCD6CBCBE58
- brevo-code:b97bec109755ad3eba7a88598c420a3b
- swisssign-check=vMB0wAtzzrZREqQKu5cbWsd4dnE
- SPFv=spf1 mx ip4:195.243.56.0/24 ip4:195.243.129.128/26 include:spf.regioit.de a:otc-de-spf.mms.t-systems-service.com -all
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