Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
lischeck-immobilien.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 21:11:45 UTC · ↺ Refresh
MX Hostnames
- mail.1a-mailserver.de
MX Priorities
- mail.1a-mailserver.de: 10
A / AAAA Records
- 81.3.7.194 ↩ 81.3.7.194.1a-infosysteme.de
Mail Server IPs
- 81.3.7.125 ↩ mail.1a-mailserver.de
SOA Record
Raw SOA
ns1.1a-infosysteme.de hostmaster.1a-infosysteme.de 2026011001 14400 3600 604800 86400
Primary NS (mname)
ns1.1a-infosysteme.de
Admin Email (rname)
hostmaster@1a-infosysteme.de
Serial
2026011001
Refresh
14400s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns1.1a-infosysteme.de
ns2.1a-infosysteme.de
SPF Record
✓ Strict (-all)
v=spf1 a mx include:1a-mailserver.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; aspf=r; adkim=r
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → 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
1 record- SPFv=spf1 a mx include:1a-mailserver.de -all
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