ioer.de

Valid Email Server
Domain Lookup › ioer.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
ioer.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-04 18:09:17 UTC · ↺ Refresh

MX Hostnames

  • mailin-sek1.zih.tu-dresden.de
  • mailin-prim2.zih.tu-dresden.de
  • mailin-prim1.zih.tu-dresden.de

MX Priorities

  • mailin-prim1.zih.tu-dresden.de: 20
  • mailin-prim2.zih.tu-dresden.de: 20
  • mailin-sek1.zih.tu-dresden.de: 20

A / AAAA Records

  • 134.119.225.177 ↩ mc22271.ispgateway.de
  • 2a00:116a:10f:7b70:: ↩ jweiland45.net

Mail Server IPs

  • 141.30.67.64 ↩ mailin-prim1.zih.tu-dresden.de
  • 141.30.67.65 ↩ mailin-prim2.zih.tu-dresden.de
  • 141.76.32.216 ↩ mailin-sek1.zih.tu-dresden.de

SOA Record

Raw SOA pdns1.zih.tu-dresden.de hostmaster.tu-dresden.de 2036040100 21600 3600 2419200 3600
Primary NS (mname)
pdns1.zih.tu-dresden.de
Admin Email (rname)
hostmaster@tu-dresden.de
Serial
2036040100
Refresh
21600s
Retry
3600s
Expire
2419200s
Minimum TTL
3600s

Nameservers (NS)

adns1.zih.tu-dresden.de
adns2.zih.tu-dresden.de
dns-1.dfn.de
dns-3.dfn.de

SPF Record

✓ Soft Fail (~all)
v=spf1 include:mail.ioer.de include:spf.crsend.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

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

4 records
  • canva-site-verification=cXUmBZoCy-ngyFlH1Qo5jQ
  • ZOOM_verify_jbu2t1cBFZqNtqT50esObp
  • SPFv=spf1 include:mail.ioer.de include:spf.crsend.com ~all
  • adobe-idp-site-verification=a8f160a7ecb76bef98d684d520b973b0d8b810bf1f1d57908e1cb2686991d623
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