Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
heizbude.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 18:24:13 UTC · ↺ Refresh
MX Hostnames
- mail.heizbude.de
- mx2f29.netcup.net
MX Priorities
- mx2f29.netcup.net: 50
- mail.heizbude.de: 10
A / AAAA Records
- 138.199.224.188 ↩ whf24.whf-server.de
- 2a01:4f8:c013:bbe4::100 ↩ whf24.whf-server.de
Mail Server IPs
- 188.68.47.41 ↩ mx2f29.netcup.net
SOA Record
Raw SOA
root-dns.netcup.net dnsadmin.netcup.net 2025040319 28800 7200 1209600 300
Primary NS (mname)
root-dns.netcup.net
Admin Email (rname)
dnsadmin@netcup.net
Serial
2025040319
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
second-dns.netcup.net
third-dns.netcup.net
root-dns.netcup.net
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a include:_spf.webhosting.systems ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate 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- brevo-code:28f0e6d3f4142f7da5bb1cabdb2087ed
- google-site-verification=suqQMPbA3_Cnrob5Z9Q81YHSZkAYnU9FdC5iMJPwRec
- google-site-verification=oud1yt1bIuPz6EmpRDpqej3YR1_cZjacJ_ZZ-ju5sVk
- SPFv=spf1 mx a include:_spf.webhosting.systems ~all
- google-site-verification=HCzjRcPYfoGdocs9B0KeqTxxZG-Tfb3S8y7pE5PY-mk
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