Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
koester-aluminium.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 19:58:31 UTC · ↺ Refresh
MX Hostnames
- mail.koester-aluminium.de
MX Priorities
- mail.koester-aluminium.de: 10
A / AAAA Records
- 5.44.107.203 ↩ s10.deltamedia.de
Mail Server IPs
- 87.128.226.131 ↩ mail.koester-aluminium.de
SOA Record
Raw SOA
ns1037.ui-dns.org hostmaster.kundenserver.de 2017032981 28800 7200 604800 300
Primary NS (mname)
ns1037.ui-dns.org
Admin Email (rname)
hostmaster@kundenserver.de
Serial
2017032981
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1037.ui-dns.de
ns1037.ui-dns.biz
ns1037.ui-dns.org
ns1037.ui-dns.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a ip4:87.128.226.128/29 include:spf-de.emailsignatures365.com include:_spf-eu.ionos.com ~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
✓ 2 found
mail._domainkey
k1._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- apple-domain-verification=LOFDbQP3ttAdtyV2
- MS=ms73701810
- brevo-code:68c3d645390a960d38935653ff3c3a2a
- MS=291F766AD993EAE1DC036FB3B09EC7A26BB959AC
- SPFv=spf1 a ip4:87.128.226.128/29 include:spf-de.emailsignatures365.com include:_spf-eu.ionos.com ~all
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