Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
twardokus.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 17:15:59 UTC · ↺ Refresh
MX Hostnames
- mail.twardokus.org
MX Priorities
- mail.twardokus.org: 10
A / AAAA Records
- 81.169.145.150 ↩ w96.rzone.de
- 2a01:238:20a:202:1150:: ↩ w96.rzone.de
Mail Server IPs
- 88.99.34.52 ↩ mail.twardokus.org
- 2a01:4f8:c014:ce1c::1 ↩ mail.twardokus.org
SOA Record
Raw SOA
shades15.rzone.de hostmaster.strato-rz.de 2020062743 86400 7200 604800 300
Primary NS (mname)
shades15.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020062743
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
docks11.rzone.de
shades15.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
dkim._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx -all
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