heinrichs.de

Valid Email Server

Domain Overview

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

Checked via [email protected] · 2026-03-25 07:31:15 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 92.205.150.123 (no PTR)

Mail Server IPs

  • 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
  • 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
  • 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
  • 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
  • 2a01:111:f403:ca09:: ↩ mail-am3pr04cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::6 ↩ mail-db4pr02cu00406.inbound.protection.outlook.com

SOA Record

Raw SOA shades09.rzone.de hostmaster.strato-rz.de 2020050921 86400 7200 604800 300
Primary NS (mname)
shades09.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020050921
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

shades09.rzone.de
docks16.rzone.de

SPF Record

✓ Soft Fail (~all)
v=spf1 a mx mx:mail.heinrichs.de ip4:217.6.102.162 include:spf.protection.outlook.com include:secureserver.net ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; pct=100
⚠ 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

4 records
  • google-site-verification=rEfQKepTE4HyXD8DgB-alnyozRiKw--lKOtSJ0haoFQ
  • c4d3ffc8fc8a338fd33fda2fbd452b36
  • D9151282
  • SPFv=spf1 a mx mx:mail.heinrichs.de ip4:217.6.102.162 include:spf.protection.outlook.com include:secureserver.net ~all
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 heinrichs.de

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

No credit card required
Get 1,000 Free Credits