{"id":"haravich-fake-smtp-server","name":"fake-smtp-server","homepage":"https://hub.docker.com/r/haravich/fake-smtp-server","repo_url":"https://hub.docker.com/r/haravich/fake-smtp-server","category":"communication","subcategories":[],"tags":["email","smtp","testing","devtools","mock-server","local-development","integration-tests"],"what_it_does":"fake-smtp-server is a local/testing-oriented SMTP server implementation intended to accept SMTP connections and capture/handle outbound email flows without delivering real messages to the internet (i.e., a “fake” SMTP sink for development and tests).","use_cases":["Integration tests for email-sending code (verify SMTP interaction and message formatting)","Local development environments that need an SMTP endpoint","CI test runs where outbound email delivery must be simulated","Testing system workflows that depend on sending emails (registration, notifications, password resets)"],"not_for":["Production email delivery","Compliance-sensitive environments that require guaranteed email delivery semantics","Scenarios needing full SMTP feature parity with major providers"],"best_when":"You need a lightweight SMTP endpoint for automated tests or local development, and you can validate messages via logs/storage provided by the server.","avoid_when":"You require real email delivery, strong delivery guarantees, or provider-grade SMTP extensions and monitoring.","alternatives":["MailHog","Mailpit","smtp4dev","Local SMTP services in your test harness (mock SMTP)","Using a transactional email provider sandbox (e.g., SendGrid/Mailgun sandbox) for higher-fidelity testing"],"af_score":29.5,"security_score":21.5,"reliability_score":7.5,"package_type":"mcp_server","discovery_source":["docker_mcp"],"priority":"low","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-04-04T21:31:03.554592+00:00","interface":{"has_rest_api":false,"has_graphql":false,"has_grpc":false,"has_mcp_server":false,"mcp_server_url":null,"has_sdk":false,"sdk_languages":[],"openapi_spec_url":null,"webhooks":false},"auth":{"methods":["None / no authentication for local test servers (commonly)"],"oauth":false,"scopes":false,"notes":"No authentication details were provided in the prompt; typical fake SMTP servers do not require auth for local testing. Treat this as unverified based on absent repository documentation in the provided content."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":null},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":29.5,"security_score":21.5,"reliability_score":7.5,"mcp_server_quality":0.0,"documentation_accuracy":0.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":90.0,"rate_limit_clarity":0.0,"tls_enforcement":20.0,"auth_strength":0.0,"scope_granularity":0.0,"dependency_hygiene":50.0,"secret_handling":50.0,"security_notes":"Because repository-specific security details were not included, scores are conservative defaults for an unspecified fake SMTP server. Real deployments should not rely on it. In general, fake SMTP servers can expose unauthenticated endpoints on localhost—ensure binding to loopback and avoid using in untrusted networks.","uptime_documented":0.0,"version_stability":0.0,"breaking_changes_history":0.0,"error_recovery":30.0,"idempotency_support":"false","idempotency_notes":null,"pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":["Because no README/repo details were provided here, integration and error-handling behavior are unknown. Agents may need to inspect the repository for how messages are stored/queried (if at all).","SMTP test servers often vary in supported SMTP commands/extensions; agents should validate supported features (e.g., STARTTLS, auth, size limits)."]}}