Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
heinemann-elektro.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 16:32:37 UTC · ↺ Refresh
MX Hostnames
- mail.heinemann-elektro.de
- mx01.kundenserver.de
- mx00.kundenserver.de
MX Priorities
- mail.heinemann-elektro.de: 10
- mx00.kundenserver.de: 20
- mx01.kundenserver.de: 21
A / AAAA Records
- 176.52.245.200 ↩ r11273.agenturserver.it
Mail Server IPs
- 151.189.113.101 ↩ mail.heinemann-elektro.de
- 212.227.15.41 ↩ mx00.kundenserver.de
- 217.72.192.67 ↩ mx01.kundenserver.de
SOA Record
Raw SOA
ns1101.ui-dns.biz hostmaster.1und1.de 2016110559 28800 7200 604800 300
Primary NS (mname)
ns1101.ui-dns.biz
Admin Email (rname)
hostmaster@1und1.de
Serial
2016110559
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1101.ui-dns.de
ns1101.ui-dns.com
ns1101.ui-dns.org
ns1101.ui-dns.biz
SPF Record
✓ Strict (-all)
v=spf1 mx a include:agenturserver.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];adkim=r;aspf=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: 392 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
6 records- atlassian-domain-verification=Fp8zr0mr3x2NktD0CFR1xivTu54Y3sM79kaToMeVLrvun4ZR10x6JaVVGPvp4GZd
- apple-domain-verification=BDzLcxvnACa5xy4Q
- MS=ms30688007
- SPFv=spf1 mx a include:agenturserver.de -all
- atlassian-sending-domain-verification=c3b1df2b-f5b7-48e5-83e6-5397cdd4a7a3
- atlassian-domain-verification=7S8vanfa3aWqwXUaGRgSEQtrHJVNfq9CtWlcd6cr2LLLzXixBGsgSGvENh2uophW
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