Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ser-gmbh.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 08:57:13 UTC · ↺ Refresh
MX Hostnames
- ser-gmbh.de
MX Priorities
- ser-gmbh.de: 10
A / AAAA Records
- 88.198.31.130 ↩ ser-gmbh.de
Mail Server IPs
- 88.198.31.130 ↩ ser-gmbh.de
SOA Record
Raw SOA
docks20.rzone.de hostmaster.strato-rz.de 2024101791 86400 7200 604800 300
Primary NS (mname)
docks20.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2024101791
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades05.rzone.de
docks20.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 ip4:88.198.31.130 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; adkim=s; aspf=s;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 ip4:88.198.31.130 -all
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