Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rwa-lueftung.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 06:02:06 UTC · ↺ Refresh
MX Hostnames
- mail.dextermedia.de
MX Priorities
- mail.dextermedia.de: 10
A / AAAA Records
- 85.236.47.133 ↩ mail2.dextermedia.de
Mail Server IPs
- 85.236.47.137 ↩ mail.dextermedia.de
- 2001:4178:2:1147:85:236:59:180 ↩ mail.dextermedia.de
SOA Record
Raw SOA
dns01.ns15.net hostmaster.dextermedia.net.rwa-lueftung.de 2026020501 10800 3600 604800 180
Primary NS (mname)
dns01.ns15.net
Admin Email (rname)
hostmaster@dextermedia.net.rwa-lueftung.de
Serial
2026020501
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
180s
Nameservers (NS)
dns03.ns15.net
dns04.ns15.net
dns02.ns15.net
dns01.ns15.net
SPF Record
✓ Strict (-all)
v=spf1 mx -all
📊 DNS lookups: 1/10
✓ 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
3 records- google-site-verification=tixIG-bhXLJT4OmSOd4LDox8m6Vu4tYdA7Wir-8Z0OE
- SPFv=spf1 mx -all
- 201805221211282mqjwkfeadwtmle141072m22b2416z6ezx9e87pkpj94g1ehem
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