hs-fresenius.de

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
hs-fresenius.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-25 09:47:17 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • hsfresenius-de0e.mail.protection.outlook.com

MX Priorities

  • hsfresenius-de0e.mail.protection.outlook.com: 15

A / AAAA Records

  • 185.175.199.40 (no PTR)
  • 2a00:1c98:60:1220::c2dd:71b6 (no PTR)

Mail Server IPs

  • 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
  • 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
  • 52.101.73.19 ↩ mail-as8pr04cu00803.inbound.protection.outlook.com
  • 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns.europe.adacor.net hostmaster.adacor.net 2026032005 10000 1800 604800 3600
Primary NS (mname)
ns.europe.adacor.net
Admin Email (rname)
hostmaster@adacor.net
Serial
2026032005
Refresh
10000s
Retry
1800s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns5.adacor.net
ns.europe.adacor.net

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:195.37.15.209 ip4:188.172.113.195 ip4:116.203.110.13 ip4:159.69.3.23 include:spf.protection.outlook.com include:mail.zendesk.com include:_spf.salesforce.com include:spf.mailjet.com a:cognos-ag.managed-otrs.com ip4:20.52.148.139 -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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

13 records
  • /U86uyNntEQFkbracnzXSwa8gM958f5wwHpMt2XiNd+V8gjBkYyLI1WktPg+Jx3yvXmBIIELq3+GfG9kOJ9vIw==
  • SPFv=spf1 mx ip4:195.37.15.209 ip4:188.172.113.195 ip4:116.203.110.13 ip4:159.69.3.23 include:spf.protection.outlook.com include:mail.zendesk.com include:_spf.salesforce.com include:spf.mailjet.com a:cognos-ag.managed-otrs.com ip4:20.52.148.139 -all
  • _globalsign-domain-verification=lJ6-fRXqfP1jw-QxO7P55t3nKD0Zm2NCE_kaFlSkF9
  • 202005182048575q7souo6i10j6zwxru1l0vjmkbv4qdi1tbdftzmuugsrjj287d
  • ZOOM_verify_LK5aNHV9SSq_d3Q--rGjhA
  • atlassian-domain-verification=ftBxUyXTplwq5wcaNRewrT70Ci0KU967kZh7Rlb81nz/Xhw0lvIgk6HYK4npHSlk
  • autodesk-domain-verification=ERncffRbLGlIE1pZHEfb
  • adobe-idp-site-verification=1b1a79e71caac6c511a9514b1f2da07739846b105f832cf4be3edd5bc784019e
  • stripe-verification=14fb2120e769c4e61db74e75c48a98cfb418b94bddc86cd384e00bbc405916d1
  • google-site-verification=ZgZ0oMtj9L9Clo3ZHfTgXP5hVFP9SRqj9gQfYShR5u8
  • _globalsign-domain-verification=P6EbLHHre8tQDC8CAYpieeB62W1ghRXyocZUNEzPDM
  • swisssign-check=GNHt9iRpHRl1LZXS0MPol24tX1o
  • google-site-verification=htkCqn6XSNUIFqyQQyA5yzzslzuqsiPSlMq0qzM44eM
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 · Customize →
See demo & docs
Deep verification
Full email verification for hs-fresenius.de

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

No credit card required
Get 1,000 Free Credits