heilbronn.de

Valid Email Server
Domain Lookup › heilbronn.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
heilbronn.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-04 01:23:53 UTC · ↺ Refresh

MX Hostnames

  • mail.stadt-heilbronn.de
  • mail2.stadt-heilbronn.de

MX Priorities

  • mail.stadt-heilbronn.de: 10
  • mail2.stadt-heilbronn.de: 15

A / AAAA Records

  • 91.236.122.19 ↩ x5bec7a13.host.myracloud.com
  • 2a02:cb40:200::1f4 (no PTR)

Mail Server IPs

  • 193.197.7.3 ↩ mail.stadt-heilbronn.de
  • 193.197.7.4 ↩ mail2.stadt-heilbronn.de

SOA Record

Raw SOA a.myradns.de support.myrasecurity.com 2774273169 16384 2048 1048576 2560
Primary NS (mname)
a.myradns.de
Admin Email (rname)
support@myrasecurity.com
Serial
2774273169
Refresh
16384s
Retry
2048s
Expire
1048576s
Minimum TTL
2560s

Nameservers (NS)

a.myradns.de
b.myradns.de
c.myradns.de

SPF Record

✓ Strict (-all)
v=spf1 ip4:193.197.7.3 ip4:193.197.7.4 ip4:194.59.36.41 ip4:194.59.36.42 ip4:194.59.36.43 include:spf.protect.kvnbw.de include:spf.crsend.com include:_spf.psm.knowbe4.com include:_spf.belwue.de include:amazonses.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=quarantine; fo=0:1:d:s;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

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

All TXT Records

5 records
  • swisssign-check=_wMmkV8IUnb-NKDLQG6SBhhRpv4
  • SPFv=spf1 ip4:193.197.7.3 ip4:193.197.7.4 ip4:194.59.36.41 ip4:194.59.36.42 ip4:194.59.36.43 include:spf.protect.kvnbw.de include:spf.crsend.com include:_spf.psm.knowbe4.com include:_spf.belwue.de include:amazonses.com -all
  • MS=2498AA08C63744C13A5A856D60D9E526B5B07883
  • apple-domain-verification=QfsJsvKtd5rspx8i
  • cisco-ci-domain-verification=4c97438424c825ab0a23bb48dc7f89ea022f85dde7bcced50e99f996fc9d699a
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