Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rmatthes.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 00:54:56 UTC · ↺ Refresh
MX Hostnames
- mail.rmatthes.de
MX Priorities
- mail.rmatthes.de: 10
A / AAAA Records
- 217.28.104.195 ↩ lwtestmiko.customer.leitwerk.net
Mail Server IPs
- 217.28.104.194 ↩ mail.rmatthes.de
SOA Record
Raw SOA
ns.inwx.de hostmaster.inwx.de 2026030400 10800 3600 604800 3600
Primary NS (mname)
ns.inwx.de
Admin Email (rname)
hostmaster@inwx.de
Serial
2026030400
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns3.inwx.eu
ns2.inwx.de
ns.inwx.de
SPF Record
✓ Strict (-all)
v=spf1 mx a ip4:217.28.104.194 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx a ip4:217.28.104.194 -all
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