rsiemon.de

Valid Email Server
Domain Lookup › rsiemon.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
rsiemon.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-03 07:32:59 UTC · ↺ Refresh

MX Hostnames

  • mail.rsiemon.de

MX Priorities

  • mail.rsiemon.de: 10

A / AAAA Records

  • 138.201.54.155 ↩ beryllium.rsiemon.de

Mail Server IPs

  • 138.201.54.155 ↩ beryllium.rsiemon.de

SOA Record

Raw SOA ns1.first-ns.de dns.hetzner.com 2026033100 14400 1800 604800 86400
Primary NS (mname)
ns1.first-ns.de
Admin Email (rname)
dns@hetzner.com
Serial
2026033100
Refresh
14400s
Retry
1800s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

robotns2.second-ns.de
robotns3.second-ns.com
ns1.first-ns.de

SPF Record

✓ Strict (-all)
v=spf1 ip4:138.201.54.155 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No 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
✓ DKIM properly configured for selector: google

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 ip4:138.201.54.155 -all
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