{"id":"mailserver2-debian-mail-overlay","name":"debian-mail-overlay","homepage":"https://hub.docker.com/r/mailserver2/debian-mail-overlay","repo_url":"https://hub.docker.com/r/mailserver2/debian-mail-overlay","category":"infrastructure","subcategories":[],"tags":["debian","packaging","infrastructure","mail","configuration","overlay"],"what_it_does":"debian-mail-overlay is a Debian packaging overlay intended to modify or extend the behavior of Debian’s mail-related packages (e.g., injecting configuration or overriding package files) at build/install time using an overlay mechanism.","use_cases":["Customize Debian mail package configuration without forking entire packages","Apply consistent local policy (e.g., defaults, templates, service config) across Debian mail tooling","Build reproducible mail stack images with opinionated defaults"],"not_for":["Providing a programmatic mail API for application developers","Production email delivery service (SMTP/IMAP) implementation","Authentication/authorization gateway or mail security scanning"],"best_when":null,"avoid_when":null,"alternatives":["Use Debian configuration management (Ansible, Puppet, Chef) to override templates/configs","Build custom Debian packages directly (source package + debian/ folder changes) instead of overlaying","Use container images with preconfigured mail stacks (if appropriate)","Use systemd drop-ins or debconf preseeding for mail package configuration where supported"],"af_score":30.2,"security_score":11.2,"reliability_score":25.0,"package_type":"mcp_server","discovery_source":["docker_mcp"],"priority":"low","status":"evaluated","version_evaluated":null,"last_evaluated":"2026-04-04T21:29:26.230819+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":"No API/service authentication model; it’s a build-time/install-time overlay."},"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":30.2,"security_score":11.2,"reliability_score":25.0,"mcp_server_quality":0.0,"documentation_accuracy":30.0,"error_message_quality":0.0,"error_message_notes":null,"auth_complexity":100.0,"rate_limit_clarity":0.0,"tls_enforcement":0.0,"auth_strength":0.0,"scope_granularity":0.0,"dependency_hygiene":35.0,"secret_handling":30.0,"security_notes":"Security posture is largely determined by what the overlay changes (e.g., mail server configs). Without observable details of the overlay contents, scores are conservative: secret handling depends on whether templates/configs embed credentials and whether build logs expose them. Transport security (TLS) is not directly addressed by the overlay itself.","uptime_documented":0.0,"version_stability":40.0,"breaking_changes_history":40.0,"error_recovery":20.0,"idempotency_support":"false","idempotency_notes":null,"pagination_style":"none","retry_guidance_documented":false,"known_agent_gotchas":["As a packaging overlay, behavior depends heavily on Debian version, package versions, and how/when the overlay is applied.","If changes are applied by file overrides, merges/conflicts can be version-sensitive; automated agents should validate on the target distro release."]}}