Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
oliver-margraf.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 16:38:05 UTC · ↺ Refresh
MX Hostnames
- smtp-02.tld.t-online.de
- smtp-01.tld.t-online.de
MX Priorities
- smtp-02.tld.t-online.de: 10
- smtp-01.tld.t-online.de: 10
A / AAAA Records
- 89.107.190.23 ↩ xd6.serverdomain.org
Mail Server IPs
- 194.25.134.12 ↩ smtp-02.tld.t-online.de
- 194.25.134.76 ↩ smtp-01.tld.t-online.de
SOA Record
Raw SOA
dns01-tld.t-online.de dns.telekom.de 2025092202 21600 3600 604800 86400
Primary NS (mname)
dns01-tld.t-online.de
Admin Email (rname)
dns@telekom.de
Serial
2025092202
Refresh
21600s
Retry
3600s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
dns01-tld.t-online.de
dns02-tld.t-online.de
SPF Record
✓ Strict (-all)
v=spf1 a:spf.mas.t-systems-service.com include:_spf.hier-im-netz.de include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ 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
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- google-site-verification=M9Hra7I0EQgm_D4ixUzxvgU3JrSW0XlUneCCZ46Ek_k
- SPFv=spf1 a:spf.mas.t-systems-service.com include:_spf.hier-im-netz.de include:spf.protection.outlook.com -all
- MS=ms45044312
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