Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
optimus-group.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 16:09:35 UTC · ↺ Refresh
MX Hostnames
- mx01.ionos.de
- mx00.ionos.de
MX Priorities
- mx01.ionos.de: 10
- mx00.ionos.de: 10
A / AAAA Records
- 217.160.0.18 ↩ 217-160-0-18.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::200 ↩ 2001-08d8-100f-f000-0000-0000-0000-0200.elastic-ssl.ui-r.com
Mail Server IPs
- 217.72.192.67 ↩ mx01.kundenserver.de
- 212.227.15.41 ↩ mx00.kundenserver.de
SOA Record
Raw SOA
ns1075.ui-dns.com hostmaster.1und1.com 2017060120 28800 7200 604800 600
Primary NS (mname)
ns1075.ui-dns.com
Admin Email (rname)
hostmaster@1und1.com
Serial
2017060120
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1075.ui-dns.com
ns1062.ui-dns.org
ns1088.ui-dns.de
ns1099.ui-dns.biz
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf-eu.ionos.com ~all
📊 DNS lookups: 1/10
~ 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
2 records- SPFv=spf1 include:_spf-eu.ionos.com ~all
- brevo-code:00d60be78671d27f38dec69cce0b1b34
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