Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
wisaon.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-03 09:40:51 UTC · ↺ Refresh
MX Hostnames
- mail.wisaon.de
MX Priorities
- mail.wisaon.de: 10
A / AAAA Records
- 217.79.181.48 ↩ wisatools.de
Mail Server IPs
- 217.79.181.48 ↩ wisatools.de
SOA Record
Raw SOA
cns1.alfahosting.info hostmaster\@alfahosting.de 2021062803 28800 7200 604800 10800
Primary NS (mname)
cns1.alfahosting.info
Admin Email (rname)
hostmaster\@alfahosting@de
Serial
2021062803
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
cns3.alfahosting.info
cns2.alfahosting.info
cns1.alfahosting.info
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +a:wisatools.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._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
1 record- SPFv=spf1 +a +mx +a:wisatools.de -all
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