csb.de

Valid Email Server
Domain Lookup › csb.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
csb.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-01 14:48:17 UTC · ↺ Refresh

MX Hostnames

  • mail02.csb.de

MX Priorities

  • mail02.csb.de: 10

A / AAAA Records

  • 31.204.117.146 ↩ csb-web-01.csb.recast-it.net

Mail Server IPs

  • 217.7.0.115 ↩ mail02.csb.com

SOA Record

Raw SOA srvdns1 webmaster.csb.de 2025120812 28800 7200 604800 86400
Primary NS (mname)
srvdns1
Admin Email (rname)
webmaster@csb.de
Serial
2025120812
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

pns.dtag.de
secondary006.dtag.net

SPF Record

✓ Strict (-all)
v=spf1 ip4:217.7.0.115 -all
📊 DNS lookups: 0/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; adkim=r; aspf=r;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

4 records
  • _q8665j7uzthrwwg8fnxs28by3wva1h4
  • lz856glzg90zm8l7f6cnf6c55z2qsxc7
  • SPFv=spf1 ip4:217.7.0.115 -all
  • MS=ms71943272
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