i1u.de

Valid Email Server
Domain Lookup › i1u.de

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
i1u.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-29 15:46:31 UTC · ↺ Refresh

MX Hostnames

  • mail.i1u.de
  • mx2e1e.netcup.net

MX Priorities

  • mail.i1u.de: 10
  • mx2e1e.netcup.net: 50

A / AAAA Records

  • 91.204.46.28 ↩ a2e1c.netcup.net
  • 2a03:4000:30:75b3::13:327 (no PTR)

Mail Server IPs

  • 91.204.46.30 ↩ mx2e1e.netcup.net
  • 2a03:4000::398:3846:57ff:fe2e:1bf5 ↩ mx2e1e.netcup.net

SOA Record

Raw SOA root-dns.netcup.net dnsadmin.netcup.net 2025100709 28800 7200 1209600 86400
Primary NS (mname)
root-dns.netcup.net
Admin Email (rname)
dnsadmin@netcup.net
Serial
2025100709
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

second-dns.netcup.net
third-dns.netcup.net
root-dns.netcup.net

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

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

2 records
  • _acme-challenge.cloud.i1u.de=kzMAAeiESZwwFJs1Pr_I7DEoXJMba3AIF5XYsuxMiAw
  • google-site-verification=qN8YnMLKanj1NEbxR81V0d9wWWF2XaXhLWzGU--AIwY
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