awo-duisburg.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
awo-duisburg.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-31 01:04:35 UTC · ↺ Refresh

MX Hostnames

  • awoduisburg-de0i.mail.protection.outlook.com

MX Priorities

  • awoduisburg-de0i.mail.protection.outlook.com: 0

A / AAAA Records

  • 217.160.0.123 ↩ 217-160-0-123.elastic-ssl.ui-r.com
  • 2001:8d8:100f:f000::274 ↩ 2001-08d8-100f-f000-0000-0000-0000-0274.elastic-ssl.ui-r.com

Mail Server IPs

  • 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
  • 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
  • 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.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 ns1054.ui-dns.com hostmaster.1und1.de 2017060216 28800 7200 604800 300
Primary NS (mname)
ns1054.ui-dns.com
Admin Email (rname)
hostmaster@1und1.de
Serial
2017060216
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1054.ui-dns.biz
ns1054.ui-dns.de
ns1054.ui-dns.com
ns1054.ui-dns.org

SPF Record

✓ Strict (-all)
v=spf1 mx a:firewall.awo-duisburg.de a:mout.kundenserver.de ip4:147.28.52.90 ip4:2.207.195.210 ip4:87.139.202.179 include:_spf.perfora.net include:spf.protection.outlook.com include:_spf.kundenserver.de -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

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

4 records
  • MS=ms62771594
  • apple-domain-verification=hKxPvgXV0HbF5FcX
  • SPFv=spf1 mx a:firewall.awo-duisburg.de a:mout.kundenserver.de ip4:147.28.52.90 ip4:2.207.195.210 ip4:87.139.202.179 include:_spf.perfora.net include:spf.protection.outlook.com include:_spf.kundenserver.de -all
  • MS=D1C0134074F002B445F9FC638460444E0837A365
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 awo-duisburg.de

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

No credit card required
Get 1,000 Free Credits