Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
helmert-praxis.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 17:37:25 UTC · ↺ Refresh
MX Hostnames
- host1.blueframe.net
MX Priorities
- host1.blueframe.net: 10
A / AAAA Records
- 135.181.209.150 ↩ mail.blueframe.net
- 2a01:4f9:3a:279d:2000::2 ↩ mail.blueframe.net
Mail Server IPs
- 188.40.17.84 ↩ host1.blueframe.net
- 2a01:4f8:262:4e97:1000::2 ↩ host1.blueframe.net
SOA Record
Raw SOA
ns1.ns-serve.net root.ns1.ns-serve.net 1761168617 10800 3600 604800 3600
Primary NS (mname)
ns1.ns-serve.net
Admin Email (rname)
root@ns1.ns-serve.net
Serial
1761168617
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns1.ns-serve.net
ns2.ns-serve.net
SPF Record
✓ Strict (-all)
v=spf1 a mx -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ 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 a mx -all
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