MailOptin · Domain Security

Mailoptin Domain Security

Domain security

Domain security posture for MailOptin, probed live across 1 host(s) and 1 registrable domain(s). 1 host(s) serve HTTPS (up to TLSv1.3); 1 advertise HSTS. Email/DNS controls: DNSSEC absent, SPF present, DMARC present (p=none).

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Transport & Host Security

mailoptin.io
HTTPS: yes · TLS: TLSv1.3 · HSTS: yes · cert expires: Oct 8 07:04:17 2026 GMT

Domain (DNS/Email) Security

mailoptin.io
DNSSEC: no · SPF: yes · DMARC: yes (p=none) · CAA: none

Source

Domain Security

mailoptin-domain-security.yml Raw ↑ 
generated: '2026-08-12'
method: probed
source: live DNS/TLS/HTTP probes of apis.yml + OpenAPI hosts
hosts:
- host: mailoptin.io
  https: true
  tls_version: TLSv1.3
  cert_expires: Oct  8 07:04:17 2026 GMT
  hsts: true
  hsts_max_age: 2592000
domains:
- domain: mailoptin.io
  dnssec: false
  caa: []
  spf: true
  dmarc: true
  dmarc_policy: none