upstairs-landau.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
upstairs-landau.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-25 19:52:44 UTC · ↺ Refresh

MX Hostnames

  • mx4.agenturserver.de
  • mx2.agenturserver.de
  • mx1.agenturserver.de
  • mx3.agenturserver.de

MX Priorities

  • mx3.agenturserver.de: 20
  • mx1.agenturserver.de: 10
  • mx2.agenturserver.de: 10
  • mx4.agenturserver.de: 50

A / AAAA Records

  • 185.237.66.160 ↩ shared-clump0023-web.agenturserver.it

Mail Server IPs

  • 185.15.192.58 ↩ mx3.agenturserver.de
  • 185.15.192.56 ↩ mx1.agenturserver.de
  • 185.15.192.57 ↩ mx2.agenturserver.de
  • 185.15.192.59 ↩ mx4.agenturserver.de

SOA Record

Raw SOA ns01.agenturserver.de support.mittwald.de 1720918062 28800 7200 604800 3600
Primary NS (mname)
ns01.agenturserver.de
Admin Email (rname)
support@mittwald.de
Serial
1720918062
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

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

SPF Record

✓ Soft Fail (~all)
v=spf1 include:agenturserver.de ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate 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:agenturserver.de ~all
  • DKIMv=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3QbnVekHnxFDdjzA4U6IjtVKtLHlMEINXHDNPn6oC9ixGYtAFYQAtXCn3g3RZHk9ZVh4uoR936wzrROUaqQnwOfhj8BnegbHRTOIwudDtKgoh2EAOLxxip9GA23X0oLMj5PPJl7HgyO89X4nGZKsTPgnSer3x9/nYUSY3iOcXjnbgrlu10+x7511T9Y6B+bwEo9dWXS96C8gNo1bcC5LSZf8xEJetodEEAMgjny6cYKqAYwiiwlhw0Yln0SFV+C7l0jce6/9qitJBHAU9VyHLSi9acE5D9ScXZ3ALWVvrNc6ypizSSluuzia5+RsoiaQenDBV4VYwGJz7g1tag3+DwIDAQAB
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for upstairs-landau.de

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits