widder-software.de

Valid Email Server
Domain Lookup › widder-software.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
widder-software.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-02 10:33:41 UTC · ↺ Refresh

MX Hostnames

  • mail.widder-software.de

MX Priorities

  • mail.widder-software.de: 5

A / AAAA Records

  • 158.181.48.35 ↩ mhweb-bbg-11.internet1.de

Mail Server IPs

  • 158.181.48.182 ↩ mcno-bbg-05.internet1.de
  • 2a00:6140:114:4::1 ↩ mcno-bbg-05.internet1.de

SOA Record

Raw SOA ns.internet1.de dns.centron.de 2016110212 3600 600 1209600 1800
Primary NS (mname)
ns.internet1.de
Admin Email (rname)
dns@centron.de
Serial
2016110212
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
1800s

Nameservers (NS)

ns2.internet1.de
ns.internet1.de

SPF Record

✓ Strict (-all)
v=spf1 a mx include:_spf.internet1.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

1 record
  • SPFv=spf1 a mx include:_spf.internet1.de -all
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