heise-buerotechnik.de

Valid Email Server
Domain Lookup › heise-buerotechnik.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
heise-buerotechnik.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-01 09:35:07 UTC · ↺ Refresh

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MX Hostnames

  • smtpin.rzone.de

MX Priorities

  • smtpin.rzone.de: 5

A / AAAA Records

  • 81.169.145.84 ↩ w84.rzone.de
  • 2a01:238:20a:202:1084:: ↩ w84.rzone.de

Mail Server IPs

  • 81.169.145.97 ↩ smtpin.rzone.de
  • 2a01:238:20a:202:50f0::1097 ↩ smtpin.rzone.de

SOA Record

Raw SOA shades12.rzone.de hostmaster.strato-rz.de 2020050852 86400 7200 604800 300
Primary NS (mname)
shades12.rzone.de
Admin Email (rname)
hostmaster@strato-rz.de
Serial
2020050852
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

shades12.rzone.de
docks19.rzone.de

SPF Record

✓ Soft Fail (~all)
v=spf1 a include:_spf.strato.com include:spf.sendinblue.com include:_spf.bueroring.de include:mymailwall.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected], mailto:[email protected]; sp=none; aspf=r;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected], mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail

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

All TXT Records

5 records
  • google-site-verification=aEKKPCijDzk195SJZYt_c4ENepX6hk3fwVbtM2R874M
  • spcheck=12aedd8c96e8569855ea38b972416c84a75e9bb60e09416c00dd37f5e4ed2991
  • have-i-been-pwned-verification=ae651542507ca23155a6d7b761ec58cc
  • sendinblue-code:70c1e0e731aebf59915201a56b1d461b
  • SPFv=spf1 a include:_spf.strato.com include:spf.sendinblue.com include:_spf.bueroring.de include:mymailwall.com ~all
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