crossbase.de

Valid Email Server
Domain Lookup › crossbase.de

Domain Overview

DNS: ✓ 1mo ago Checker: ✓ 1mo ago
crossbase.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-06 15:48:31 UTC · ↺ Refresh

MX Hostnames

  • mx1.crossbase.de

MX Priorities

  • mx1.crossbase.de: 10

A / AAAA Records

  • 78.46.108.100 ↩ static.100.108.46.78.clients.your-server.de

Mail Server IPs

  • 185.133.13.140 ↩ mx1.crossbase.de

SOA Record

Raw SOA dns1.a1.net domainadmin.a1.net 2026030400 3600 1200 3600000 600
Primary NS (mname)
dns1.a1.net
Admin Email (rname)
domainadmin@a1.net
Serial
2026030400
Refresh
3600s
Retry
1200s
Expire
3600000s
Minimum TTL
600s

Nameservers (NS)

dns1.a1.net
dns2.a1.net
dns3.a1.net

SPF Record

✓ Strict (-all)
v=spf1 +mx ip4:185.133.13.140 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;sp=reject;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];adkim=s;aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict · DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • google-site-verification=Y_aiiPXoQSYTL1nSw2YMJI-ssIP8HyVjZv9DZQ1UO7c
  • MS=ms39741907
  • SPFv=spf1 +mx ip4:185.133.13.140 -all
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