Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
subtel.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 09:52:36 UTC · ↺ Refresh
MX Hostnames
- mail.subtel.de
MX Priorities
- mail.subtel.de: 10
A / AAAA Records
- 89.244.117.19 (no PTR)
Mail Server IPs
- 89.244.117.20 ↩ mail.subtel.de
SOA Record
Raw SOA
ns1.hosting.de hostmaster.subtel.de 2026021305 86400 7200 3600000 900
Primary NS (mname)
ns1.hosting.de
Admin Email (rname)
hostmaster@subtel.de
Serial
2026021305
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
900s
Nameservers (NS)
ns2.hosting.de
ns3.hosting.de
ns1.hosting.de
SPF Record
✓ Strict (-all)
v=spf1 mx a ip4:217.31.82.210/32 ip4:217.31.82.221/32 ip4:89.244.117.18/32 ip4:89.244.117.20/32 include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; adkim=s; aspf=r; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
default._domainkey
mail._domainkey
✓ Public key: 216 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
4 records- brevo-code:a0a1b28bdbb5af502932696e8c51df6b
- MS=ms13139601
- SPFv=spf1 mx a ip4:217.31.82.210/32 ip4:217.31.82.221/32 ip4:89.244.117.18/32 ip4:89.244.117.20/32 include:spf.protection.outlook.com -all
- google-site-verification=nKjklgpagfmX-Q5mOX-LQN86GXTtG9-pOMpNEUM-A14
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