Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
immo-koppe.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 21:36:00 UTC · ↺ Refresh
MX Hostnames
- mxext1.mailbox.org
- mxext2.mailbox.org
- mxext3.mailbox.org
MX Priorities
- mxext1.mailbox.org: 10
- mxext2.mailbox.org: 10
- mxext3.mailbox.org: 10
A / AAAA Records
- 185.225.133.149 ↩ srvm3145.reverse-ip.de
Mail Server IPs
- 80.241.60.212 ↩ mx1.mailbox.org
- 2001:67c:2050:104::1:25:1 ↩ mx1.mailbox.org
- 80.241.60.215 ↩ mx2.mailbox.org
- 2001:67c:2050:104::2:25:1 ↩ mx2.mailbox.org
- 80.241.60.216 ↩ mx3.mailbox.org
- 2001:67c:2050:104::3:25:1 ↩ mx3.mailbox.org
SOA Record
Raw SOA
ns1034.ui-dns.de hostmaster.1und1.de 2017020824 28800 7200 604800 300
Primary NS (mname)
ns1034.ui-dns.de
Admin Email (rname)
hostmaster@1und1.de
Serial
2017020824
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1034.ui-dns.biz
ns1034.ui-dns.de
ns1034.ui-dns.com
ns1034.ui-dns.org
SPF Record
✓ Soft Fail (~all)
v=spf1 a include:mailbox.org ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 a include:mailbox.org ~all
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