Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
gerke-dach.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 09:46:14 UTC · ↺ Refresh
MX Hostnames
- mxext1.mailbox.org
- mxext2.mailbox.org
- mxext3.mailbox.org
MX Priorities
- mxext3.mailbox.org: 10
- mxext2.mailbox.org: 20
- mxext1.mailbox.org: 10
A / AAAA Records
- 148.251.108.100 ↩ static.100.108.251.148.clients.your-server.de
- 2a01:4f8:201:52e5::4:2186 (no PTR)
Mail Server IPs
- 80.241.60.216 ↩ mx3.mailbox.org
- 2001:67c:2050:104::3:25:1 ↩ mx3.mailbox.org
- 80.241.60.215 ↩ mx2.mailbox.org
- 2001:67c:2050:104::2:25:1 ↩ mx2.mailbox.org
- 80.241.60.212 ↩ mx1.mailbox.org
- 2001:67c:2050:104::1:25:1 ↩ mx1.mailbox.org
SOA Record
Raw SOA
ns.checkdomain.de hostmaster.checkdomain.de 2024043005 40000 7200 604800 300
Primary NS (mname)
ns.checkdomain.de
Admin Email (rname)
hostmaster@checkdomain.de
Serial
2024043005
Refresh
40000s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns2.checkdomain.de
ns.checkdomain.de
SPF Record
✓ Strict (-all)
v=spf1 mx include:mailbox.org include:mail.box2me.de include:venus.server-betrieb.net include:mailout.box2me.de -all
📊 DNS lookups: 5/10
✓ 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
✓ 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 mx include:mailbox.org include:mail.box2me.de include:venus.server-betrieb.net include:mailout.box2me.de -all
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