optimum-gmbh.de

Valid Email Server
Domain Lookup › optimum-gmbh.de

Domain Overview

DNS: ✓ 8h ago Checker: ✓ 8h ago
optimum-gmbh.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-07-02 11:30:33 UTC · ↺ Refresh

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MX Hostnames

  • mx03.secure-mailgate.com
  • mx04.secure-mailgate.com

MX Priorities

  • mx04.secure-mailgate.com: 10
  • mx03.secure-mailgate.com: 10

A / AAAA Records

  • 199.60.103.4 (no PTR)
  • 199.60.103.104 (no PTR)

Mail Server IPs

  • 46.243.88.175 ↩ node03.secure-mailgate.com
  • 46.243.88.177 ↩ node04.secure-mailgate.com
  • 46.243.88.174 ↩ node03.secure-mailgate.com
  • 46.243.88.176 ↩ node04.secure-mailgate.com

SOA Record

Raw SOA hydrogen.ns.hetzner.com dns.hetzner.com 2026042400 86400 10800 3600000 3600
Primary NS (mname)
hydrogen.ns.hetzner.com
Admin Email (rname)
dns@hetzner.com
Serial
2026042400
Refresh
86400s
Retry
10800s
Expire
3600000s
Minimum TTL
3600s

Nameservers (NS)

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

SPF Record

✓ Soft Fail (~all)
v=spf1 a mx include:secure-mailgate.com include:spf.protection.outlook.com include:145759503.spf05.hubspotemail.net ip4:78.46.1.18 ip4:178.238.225.43 ip6:2a01:4f8:d0a:2675::2 ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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
  • google-site-verification=eEoXh_WRbtQnmdlYXjigHipCY96_1_-V2CudxqC6Usc
  • site-verification=f4e8e3a78ee87a30a67357a087e9d061cc321fbd
  • SPFv=spf1 a mx include:secure-mailgate.com include:spf.protection.outlook.com include:145759503.spf05.hubspotemail.net ip4:78.46.1.18 ip4:178.238.225.43 ip6:2a01:4f8:d0a:2675::2 ~all
  • apple-domain-verification=JoPxGTq4Oj25jhdr
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