Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rass.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 06:09:23 UTC · ↺ Refresh
MX Hostnames
- mail.rass.de
MX Priorities
- mail.rass.de: 10
A / AAAA Records
- 49.12.221.209 ↩ static.209.221.12.49.clients.your-server.de
Mail Server IPs
- 142.93.96.114 ↩ mail.rass.de
SOA Record
Raw SOA
ns1.hosttech.de dns.hosttech.eu 2025083274 7200 120 2419200 10800
Primary NS (mname)
ns1.hosttech.de
Admin Email (rname)
dns@hosttech.eu
Serial
2025083274
Refresh
7200s
Retry
120s
Expire
2419200s
Minimum TTL
10800s
Nameservers (NS)
ns3.hosttech.de
ns1.hosttech.de
ns2.hosttech.de
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a:mail.rass.de ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; adkim=s; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 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 a:mail.rass.de ~all
Full email verification for rass.de
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits