Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
masande.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 09:23:45 UTC · ↺ Refresh
MX Hostnames
- relay.rzone.de
- mailx.rackbutler.de
- rmail08.rackbutler.de
MX Priorities
- mailx.rackbutler.de: 10
- rmail08.rackbutler.de: 20
- relay.rzone.de: 200
A / AAAA Records
- 85.13.154.16 ↩ dd37832.kasserver.com
Mail Server IPs
- 185.199.142.78 ↩ rmail08.rackbutler.de
- 81.169.145.96 ↩ relay.rzone.de
SOA Record
Raw SOA
docks15.rzone.de hostmaster.strato-rz.de 2023032527 86400 7200 604800 300
Primary NS (mname)
docks15.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2023032527
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades01.rzone.de
docks15.rzone.de
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.crsend.com include:rmail08.rackbutler.de ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 392 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
1 record- SPFv=spf1 include:spf.crsend.com include:rmail08.rackbutler.de ~all
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