siz.de

Valid Email Server
Domain Lookup › siz.de

Domain Overview

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

Checked via [email protected] · 2026-04-03 11:11:29 UTC · ↺ Refresh

MX Hostnames

  • mail1.siz.de

MX Priorities

  • mail1.siz.de: 100

A / AAAA Records

  • 87.79.11.8 (no PTR)
  • 194.25.98.72 (no PTR)

Mail Server IPs

  • 87.79.11.14 ↩ mail1.siz.de
  • 194.25.98.78 ↩ mail1.siz.de

SOA Record

Raw SOA ns1.siz.de hostmaster.siz.de 2026031301 3600 600 1209600 3600
Primary NS (mname)
ns1.siz.de
Admin Email (rname)
hostmaster@siz.de
Serial
2026031301
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s

Nameservers (NS)

auth02.ns.de.uu.net
auth52.ns.de.uu.net

SPF Record

✓ Soft Fail (~all)
v=spf1 mx ip4:87.140.13.244 ip4:194.25.98.78 ip4:194.25.98.84 ip4:194.25.98.85 ip4:87.79.11.14 ip4:87.79.11.20 a:mail1.siz.de a:mail2.siz.de a:mail4.siz.de ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
default._domainkey
✓ Public key: 250 chars (valid)
✓ DKIM properly configured for selector: default

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

All TXT Records

2 records
  • cisco-ci-domain-verification=22ccbc6541178158a1f395f9349e60663b020b34228c8976f78bc677e050b4a4
  • SPFv=spf1 mx ip4:87.140.13.244 ip4:194.25.98.78 ip4:194.25.98.84 ip4:194.25.98.85 ip4:87.79.11.14 ip4:87.79.11.20 a:mail1.siz.de a:mail2.siz.de a:mail4.siz.de ~all
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