Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sag-concept.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 00:35:04 UTC · ↺ Refresh
MX Hostnames
- maildomain.datevnet.de
- maildomain.datevnet.com
MX Priorities
- maildomain.datevnet.com: 20
- maildomain.datevnet.de: 10
A / AAAA Records
- 116.203.141.35 ↩ static.35.141.203.116.clients.your-server.de
- 2a01:4f8:1c1e:b6c7::1 (no PTR)
Mail Server IPs
- 193.27.49.207 ↩ maildomain.datevnet.com
- 193.27.49.221 ↩ maildomain.datevnet.com
- 2a00:e50:f155:7::dd ↩ maildomain.datevnet.com
- 2a00:e50:f155:7::cf ↩ maildomain.datevnet.com
- 193.27.49.220 ↩ maildomain.datevnet.de
- 193.27.49.206 ↩ maildomain.datevnet.de
- 2a00:e50:f155:7::ce ↩ maildomain.datevnet.de
- 2a00:e50:f155:7::dc ↩ maildomain.datevnet.de
SOA Record
Raw SOA
nsa4.schlundtech.de info.hsmmediasysteme.de 2025102103 43200 7200 1209600 86400
Primary NS (mname)
nsa4.schlundtech.de
Admin Email (rname)
info@hsmmediasysteme.de
Serial
2025102103
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
nsa4.schlundtech.de
nsc4.schlundtech.de
nsd4.schlundtech.de
nsb4.schlundtech.de
SPF Record
✓ Strict (-all)
v=spf1 a mx include:maildomain._spf.datev.de include:spf.protection.outlook.com include:spf.mxg.cloud -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- google-site-verification=KThE8DNoMIJ9GyBMG1lVJ9MfWJ1fibsxzwGsqvEhSg8
- SPFv=spf1 a mx include:maildomain._spf.datev.de include:spf.protection.outlook.com include:spf.mxg.cloud -all
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