feierwerk.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
feierwerk.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-03 02:07:19 UTC · ↺ Refresh

MX Hostnames

  • feierwerk-de.mail.protection.outlook.com

MX Priorities

  • feierwerk-de.mail.protection.outlook.com: 10

A / AAAA Records

  • 116.203.244.118 ↩ static.118.244.203.116.clients.your-server.de
  • 2a01:4f8:1c1c:25::1 (no PTR)

Mail Server IPs

  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com

SOA Record

Raw SOA ns1036.ui-dns.de hostmaster.schlund.de 2017011453 28800 7200 604800 300
Primary NS (mname)
ns1036.ui-dns.de
Admin Email (rname)
hostmaster@schlund.de
Serial
2017011453
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1036.ui-dns.de
ns1036.ui-dns.org
ns1036.ui-dns.biz
ns1036.ui-dns.com

SPF Record

✓ Soft Fail (~all)
v=spf1 mx ip4:194.42.96.4 ip4:217.72.192.73 ip4:217.72.192.74 ip4:217.72.192.75 ip4:212.227.17.24 ip4:212.227.17.13 ip4:212.227.17.10 ip4:88.217.225.205 ip4:212.227.15.167 ip4:217.72.192.101 ip4:212.227.126.131 ip4:212.227.126.187 ip4:212.227.126.130 ip4:212.227.126.135 ip4:212.227.126.133 ip4:212.227.126.134 ip4:116.203.244.118 include:spf.crsend.com include:_spf-eu.ionos.com include:spf.protection.outlook.com ip6:2A01:04F8:1C1C:0025:0000:0000:0000:0001 ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected], mailto:[email protected]; ruf=mailto:[email protected]; adkim=s; aspf=s; fo=1:d:s;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict · DKIM alignment: Strict
📧 Reports → mailto:[email protected], mailto:[email protected]

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

6 records
  • adobe-idp-site-verification=d88bfeab368dde5569762bac54b8be0b49113da3d9766bed252d702d3f6d42d5
  • google-site-verification=1XnzHK2n9y1LidzSvI08Q41l_aM7lSV8tI-0vWbz5ww
  • SPFv=spf1 mx ip4:194.42.96.4 ip4:217.72.192.73 ip4:217.72.192.74 ip4:217.72.192.75 ip4:212.227.17.24 ip4:212.227.17.13 ip4:212.227.17.10 ip4:88.217.225.205 ip4:212.227.15.167 ip4:217.72.192.101 ip4:212.227.126.131 ip4:212.227.126.187 ip4:212.227.126.130 ip4:212.227.126.135 ip4:212.227.126.133 ip4:212.227.126.134 ip4:116.203.244.118 include:spf.crsend.com include:_spf-eu.ionos.com include:spf.protection.outlook.com ip6:2A01:04F8:1C1C:0025:0000:0000:0000:0001 ~all
  • MS=9FB549C08D717B6027B8C8C22782C15F7C1FB9C9
  • MS=ms92307207
  • 5.3.2024
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 feierwerk.de

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

No credit card required
Get 1,000 Free Credits