Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
optik-potyka.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 06:40:13 UTC · ↺ Refresh
MX Hostnames
- mail.dextermedia.de
MX Priorities
- mail.dextermedia.de: 10
A / AAAA Records
- 85.236.47.133 ↩ mail2.dextermedia.de
Mail Server IPs
- 85.236.47.137 ↩ mail.dextermedia.de
- 2001:4178:2:1147:85:236:59:180 ↩ mail.dextermedia.de
SOA Record
Raw SOA
dns01.ns15.net hostmaster.dextermedia.net.optik-potyka.de 2024123001 10800 3600 604800 180
Primary NS (mname)
dns01.ns15.net
Admin Email (rname)
hostmaster@dextermedia.net.optik-potyka.de
Serial
2024123001
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
180s
Nameservers (NS)
dns04.ns15.net
dns02.ns15.net
dns03.ns15.net
dns01.ns15.net
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- 201805231204282io6gvioxrtwz2nx25p3hozx7a263doeejtnbplgjh7op2eoll
- SPFv=spf1 mx -all
- 201904240020265bgln1kbnmsodt110tgykblp5paacxtb3tjsa77pew0ghxxq0l
- 201904240020305q9qyq67ypnyp32bdkqomh6wh8xgvkc9mbck8r4e09v1xxupvh
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