letterhouse.de

Valid Email Server
Domain Lookup › letterhouse.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
letterhouse.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-17 20:29:11 UTC · ↺ Refresh

MX Hostnames

  • mx19c.antispameurope.com
  • mx19d.antispameurope.com
  • mx19b.antispameurope.com
  • mx19a.antispameurope.com

MX Priorities

  • mx19d.antispameurope.com: 40
  • mx19b.antispameurope.com: 20
  • mx19c.antispameurope.com: 30
  • mx19a.antispameurope.com: 10

A / AAAA Records

  • 31.220.125.33 (no PTR)

Mail Server IPs

  • 83.246.65.85 ↩ hsmx01-hz2.antispameurope.com
  • 94.100.132.100 ↩ hsmx01.antispameurope.com

SOA Record

Raw SOA ns01.agenturserver.de support.mittwald.de 1701095076 28800 7200 604800 3600
Primary NS (mname)
ns01.agenturserver.de
Admin Email (rname)
support@mittwald.de
Serial
1701095076
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns01.agenturserver.co
ns01.agenturserver.de
ns01.agenturserver.it

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:antispameurope.com include:agenturserver.de include:letterhouse.com -all
📊 DNS lookups: 4/10
✓ 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

2 records
  • SPFv=spf1 include:spf.protection.outlook.com include:antispameurope.com include:agenturserver.de include:letterhouse.com -all
  • MS=ms37184684
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