Email checker

Purpose-built email verification checks syntax, domain reachability, and basic mailbox viability to support clean lists and compliant outreach. Conceptually, it analyzes format correctness, confirms the domain can receive mail via MX records, and optionally performs a lightweight mailbox check within privacy and policy constraints. Beneficiaries include marketing teams handling signups, product teams validating user inputs, and data engineers maintaining clean contact data. The tool’s core value lies in providing a scorable signal (0–100) that guides action—whether to accept, flag as risky, or discard an address. Core features include syntax validation, domain MX verification, and a deliverability score; advanced options may include disposable-domain detection and SMTP-style checks where permitted. Typical use cases include sign-up form validation, lead capture validation, and data hygiene routines. The tool emphasizes correctness, transparency of the scoring rationale, and non-storage of sensitive payloads in basic mode, enabling rapid decision-making without heavy UX or marketing fluff. Use cases span single-email checks during onboarding and policy-compliant preprocessing before batch imports or campaigns. The result set is designed for programmatic interpretation, enabling automation workflows and integration with data quality pipelines.