Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
computer-manufaktur.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 02:19:26 UTC · ↺ Refresh
MX Hostnames
- mail3.computer-manufaktur.de
- mailrelay01.computer-manufaktur.de
- mail4.computer-manufaktur.de
- cm-fw02.computer-manufaktur.de
MX Priorities
- cm-fw02.computer-manufaktur.de: 30
- mail3.computer-manufaktur.de: 10
- mail4.computer-manufaktur.de: 50
- mailrelay01.computer-manufaktur.de: 20
A / AAAA Records
- 188.40.111.237 ↩ coma36.computer-manufaktur.net
Mail Server IPs
- 178.19.211.164 ↩ 178-19-211-164.static.hofnetz.de
- 178.19.211.162 ↩ mail3.computer-manufaktur.de
- 217.86.247.156 ↩ mail4.computer-manufaktur.de
- 159.69.115.172 ↩ mailrelay01.computer-manufaktur.de
SOA Record
Raw SOA
nsa2.schlundtech.de office.computer-manufaktur.de 2025061800 43200 7200 1209600 600
Primary NS (mname)
nsa2.schlundtech.de
Admin Email (rname)
office@computer-manufaktur.de
Serial
2025061800
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
600s
Nameservers (NS)
nsa2.schlundtech.de
nsc2.schlundtech.de
nsb2.schlundtech.de
nsd2.schlundtech.de
SPF Record
✓ Strict (-all)
v=spf1 mx a:computermanufaktur.harmonypsa.com ip4:188.40.111.237/32 include:_spf.psm.knowbe4.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 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
5 records- MS=ms81603371
- Computer Manufaktur
- MS=99F26B415AE42D681E577DF10F1207A3B8485F12
- SPFv=spf1 mx a:computermanufaktur.harmonypsa.com ip4:188.40.111.237/32 include:_spf.psm.knowbe4.com -all
- brevo-code:cfb2a4c920251b1e543151a04d263102
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