{"id":"gessnerfl-fake-smtp-server","name":"fake-smtp-server","homepage":"https://hub.docker.com/r/gessnerfl/fake-smtp-server","repo_url":"https://hub.docker.com/r/gessnerfl/fake-smtp-server","category":"testing","subcategories":[],"tags":["email","smtp","testing","devtools","automation","infrastructure"],"what_it_does":"fake-smtp-server is a test/dummy SMTP server that accepts mail for local development or integration testing without delivering it to a real email provider.","use_cases":["Unit/integration tests for email-sending code","Local development to verify SMTP connectivity and message formatting","CI tests that need deterministic email capture","Testing notification workflows without external dependencies"],"not_for":["Production email delivery","Security-sensitive environments where mail traffic should be protected and authenticated","Load/throughput benchmarking of real SMTP infrastructure"],"best_when":"You need a lightweight SMTP endpoint for automated tests or local dev, and you want to capture/inspect emails without sending them externally.","avoid_when":"You need standards-compliant full SMTP delivery semantics, robust auth/abuse prevention, or a hardened mail transfer service.","alternatives":["MailHog","smtp4dev","GreenMail","Mailtrap (real SMTP capture service)","Python/Ruby local SMTP test helpers (project-specific)"],"af_score":33.2,"security_score":26.0,"reliability_score":30.0,"package_type":"mcp_server","discovery_source":["docker_mcp"],"priority":"low","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-04-04T19:35:37.824351+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":[],"oauth":false,"scopes":false,"notes":"As a fake SMTP server for testing, it typically does not implement production-grade authentication or OAuth/scopes; specifics cannot be confirmed from the provided data."},"pricing":{"model":null,"free_tier_exists":false,"free_tier_limits":null,"paid_tiers":[],"requires_credit_card":false,"estimated_workload_costs":null,"notes":"Appears to be a self-hosted/test tool rather than a hosted API; pricing not applicable from provided info."},"requirements":{"requires_signup":false,"requires_credit_card":false,"domain_verification":false,"data_residency":[],"compliance":[],"min_contract":null},"agent_readiness":{"af_score":33.2,"security_score":26.0,"reliability_score":30.0,"mcp_server_quality":0.0,"documentation_accuracy":30.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":90.0,"rate_limit_clarity":0.0,"tls_enforcement":30.0,"auth_strength":10.0,"scope_granularity":0.0,"dependency_hygiene":50.0,"secret_handling":50.0,"security_notes":"Likely designed for local testing, so it may have minimal/no auth and limited abuse prevention. Ensure it is bound to localhost or firewalled in non-test networks. TLS/auth behavior is not confirmed from provided info.","uptime_documented":0.0,"version_stability":50.0,"breaking_changes_history":40.0,"error_recovery":30.0,"idempotency_support":"false","idempotency_notes":null,"pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":["SMTP servers are stateful and interactions may differ between STARTTLS vs plain SMTP; without documented behavior an agent may need manual tuning","If the fake server only captures messages, an agent expecting delivery receipts or bounces may fail"]}}