Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
strategy-institute.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 02:43:10 UTC · ↺ Refresh
MX Hostnames
- mx01b.sfp-net.com
- mx01a.sfp-net.com
MX Priorities
- mx01a.sfp-net.com: 10
- mx01b.sfp-net.com: 20
A / AAAA Records
- 217.160.0.32 ↩ 217-160-0-32.elastic-ssl.ui-r.com
- 2001:8d8:100f:f000::2ad ↩ 2001-08d8-100f-f000-0000-0000-0000-02ad.elastic-ssl.ui-r.com
Mail Server IPs
- 94.100.132.100 ↩ hsmx01.antispameurope.com
- 94.100.134.10 ↩ hsmx06.antispameurope.com
SOA Record
Raw SOA
ns1098.ui-dns.de hostmaster.1und1.de 2016061814 28800 7200 604800 300
Primary NS (mname)
ns1098.ui-dns.de
Admin Email (rname)
hostmaster@1und1.de
Serial
2016061814
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1098.ui-dns.com
ns1098.ui-dns.de
ns1098.ui-dns.biz
ns1098.ui-dns.org
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:spf.sfp-net.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- google-site-verification=bxGYla2s10h-FLkFDIgEabDE0FVgtmA3JCvVdiZtSM0
- SPFv=spf1 a mx include:spf.sfp-net.com ~all
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