Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
kramer-fluck.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 23:09:44 UTC · ↺ Refresh
MX Hostnames
- mail.dextermedia.de
MX Priorities
- mail.dextermedia.de: 10
A / AAAA Records
- 85.236.56.246 ↩ 246-56-236-85.rev.customer-net.de
- 2001:4178:2:1294:85:236:56:246 (no PTR)
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.kramer-fluck.de 2026020300 10800 3600 604800 180
Primary NS (mname)
dns01.ns15.net
Admin Email (rname)
hostmaster@dextermedia.net.kramer-fluck.de
Serial
2026020300
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
180s
Nameservers (NS)
dns02.ns15.net
dns01.ns15.net
dns04.ns15.net
dns03.ns15.net
SPF Record
✓ Strict (-all)
v=spf1 mx a include:mail.dextermedia.de -all
📊 DNS lookups: 3/10
✓ 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- 201904220021225umu3v26c4d5f0dmchcj610i0di37d3du46cfnpnro9grsrthg
- 201805221141461plr1o0t9r6j7ktw7kgvtmv01ja6hozptn4qofdjkvj3gh49mo
- SPFv=spf1 mx a include:mail.dextermedia.de -all
- 201904220021174oitlhr7hr1v1khn8saluqodzvyeydhxcsisbcmw2lkhj7k5gx
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