seesys.de

Valid Email Server
Domain Lookup › seesys.de

Domain Overview

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

Checked via [email protected] · 2026-03-25 09:56:42 UTC · ↺ Refresh

MX Hostnames

  • mail.seesys.de
  • mail2.seesys.de

MX Priorities

  • mail2.seesys.de: 10
  • mail.seesys.de: 10

A / AAAA Records

  • 188.40.51.21 ↩ developer.seesys.de
  • 2001:8d8:100f:f000::22c ↩ 2001-08d8-100f-f000-0000-0000-0000-022c.elastic-ssl.ui-r.com

Mail Server IPs

  • 188.40.51.21 ↩ developer.seesys.de

SOA Record

Raw SOA hydrogen.ns.hetzner.com dns.hetzner.com 2024022301 86400 10800 3600000 3600
Primary NS (mname)
hydrogen.ns.hetzner.com
Admin Email (rname)
dns@hetzner.com
Serial
2024022301
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
3600s

Nameservers (NS)

hydrogen.ns.hetzner.com
helium.ns.hetzner.de
oxygen.ns.hetzner.com

SPF Record

✓ Soft Fail (~all)
v=spf1 a a:developer.seeys.de ip4:188.40.51.21 ~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

1 record
  • SPFv=spf1 a a:developer.seeys.de ip4:188.40.51.21 ~all
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