Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
slu-gmbh.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 15:14:03 UTC · ↺ Refresh
MX Hostnames
- sogo.slu-gmbh.de
MX Priorities
- sogo.slu-gmbh.de: 0
A / AAAA Records
- 217.144.138.140 (no PTR)
Mail Server IPs
- 217.144.138.133 ↩ sogo.slu-gmbh.de
SOA Record
Raw SOA
a.regfish-ns.net dns.regfish-ns.net 1771381338 28800 7200 604800 86400
Primary NS (mname)
a.regfish-ns.net
Admin Email (rname)
dns@regfish-ns.net
Serial
1771381338
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
b.regfish-ns.net
a.regfish-ns.net
c.regfish-ns.net
SPF Record
✓ Soft Fail (~all)
v=spf1 mx include:145650510.spf01.hubspotemail.net
📊 DNS lookups: 2/10
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
dkim._domainkey
⚠ Public key (p=) missing in DKIM record for selector dkim.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=06C34084367B43427E2117D91DF46E0E1D57667A
- SPFv=spf1 mx include:145650510.spf01.hubspotemail.net
- apple-domain-verification=tvtQPH7iS9aXyxHz
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