Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mastel.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-03 07:07:02 UTC · ↺ Refresh
MX Hostnames
- mail.mastel.de
- mail2.mastel.de
MX Priorities
- mail.mastel.de: 10
- mail2.mastel.de: 20
A / AAAA Records
- 85.13.149.164 ↩ dd31930.kasserver.com
Mail Server IPs
- 80.153.59.24 ↩ mail.mastel.de
- 217.92.227.233 ↩ pd95ce3e9.dip0.t-ipconnect.de
SOA Record
Raw SOA
docks08.rzone.de hostmaster.strato-rz.de 2020050809 86400 7200 604800 300
Primary NS (mname)
docks08.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020050809
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
shades09.rzone.de
docks08.rzone.de
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:80.153.59.24 ip4:217.92.227.233 include:integration.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
s1._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 mx ip4:80.153.59.24 ip4:217.92.227.233 include:integration.net -all
- MS=ms20836956
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