factory-labs.de

Valid Email Server
Domain Lookup › factory-labs.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
factory-labs.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-03 06:51:22 UTC · ↺ Refresh

MX Hostnames

  • remote.factory-labs.de

MX Priorities

  • remote.factory-labs.de: 10

A / AAAA Records

  • 81.169.145.92 ↩ w8c.rzone.de
  • 2a01:238:20a:202:1092:: ↩ w8c.rzone.de

Mail Server IPs

  • 87.138.193.169 ↩ p578ac1a9.dip0.t-ipconnect.de

SOA Record

Raw SOA shades03.rzone.de hostmaster.strato-rz.de 2021121662 86400 7200 604800 300
Primary NS (mname)
shades03.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2021121662
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

docks17.rzone.de
shades03.rzone.de

SPF Record

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

DMARC Record

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

1 record
  • SPFv=spf1 a mx include:_spf.strato.com -all
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