Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
fr-holst.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 01:12:01 UTC · ↺ Refresh
MX Hostnames
- mail.fr-holst.de
MX Priorities
- mail.fr-holst.de: 10
A / AAAA Records
- 138.201.35.172 ↩ mail.ahoyserver.com
- 2a01:4f8:171:372b::2 ↩ mail.ahoyserver.com
Mail Server IPs
- 176.94.59.139 ↩ mail.fr-holst.de
SOA Record
Raw SOA
nsa1.schlundtech.de master.ahoyserver.de 2025081500 43200 7200 1209600 86400
Primary NS (mname)
nsa1.schlundtech.de
Admin Email (rname)
master@ahoyserver.de
Serial
2025081500
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
nsc1.schlundtech.de
nsa1.schlundtech.de
nsb1.schlundtech.de
nsd1.schlundtech.de
SPF Record
✓ Strict (-all)
v=spf1 mx a ip4:176.94.59.139 include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;rua=mailto:[email protected];ri=86400;fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms50039782
- SPFv=spf1 mx a ip4:176.94.59.139 include:spf.protection.outlook.com -all
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