Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sitacs.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 08:57:51 UTC · ↺ Refresh
MX Hostnames
- myserver.sitacs.de
- relay.rzone.de
MX Priorities
- myserver.sitacs.de: 10
- relay.rzone.de: 100
A / AAAA Records
- 217.154.228.75 ↩ sitacs.de
- 2a01:239:284:ba00::1 (no PTR)
Mail Server IPs
- 217.154.228.75 ↩ sitacs.de
- 2a01:239:284:ba00::1 (no PTR)
- 81.169.145.96 ↩ relay.rzone.de
SOA Record
Raw SOA
ns3.stratoserver.net hostmaster.strato-rz.de 2020051424 86400 7200 604800 300
Primary NS (mname)
ns3.stratoserver.net
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020051424
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns3.stratoserver.net
ns4.stratoserver.net
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; adkim=s; aspf=s
✓ Reject — strongest protection
📋 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 mx -all
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