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+> Mirrored from `/mnt/DATA/git/govoplan-mail/README.md`.
+> Origin: `repository`.
+> Active tasks and changing state belong in Gitea issues; this wiki page is durable project context.
+
+---
+# govoplan-mail
+
+GovOPlaN Mail is the mail transport module. It owns reusable SMTP/IMAP profile management, mail profile policy enforcement, mock mail infrastructure, and the mail WebUI package.
+
+## Ownership
+
+This repository owns:
+
+- backend module manifest `mail`
+- mail permissions such as `mail:profile:read`, `mail:profile:write`, `mail:profile:use`, `mail:profile:test`, and `mail:mailbox:read`
+- SMTP/IMAP profile models, policy checks, encrypted credential storage, and profile resolution
+- SMTP send and IMAP append adapters, including mock transports for development
+- development mock mailbox endpoints used by test-send flows
+- WebUI package `@govoplan/mail-webui` with profile management, policy management, and read-only mailbox components
+
+Core owns auth, tenants, RBAC evaluation, database/session primitives, secret helpers, CSRF/API helpers, and shell layout.
+
+## Credential inheritance policy
+
+SMTP and IMAP each have one credential inheritance decision: descendants inherit profile credentials, may inherit profile credentials, or must provide local credentials. The lower-level override switch for `smtp_credentials.inherit` and `imap_credentials.inherit` decides whether child scopes may change that decision. There is no separate "override the override" credential policy field.
+
+## Development
+
+Install through the core environment:
+
+```bash
+cd /mnt/DATA/git/govoplan-core
+./.venv/bin/python -m pip install -r requirements-dev.txt
+```
+
+Run the WebUI from the core host:
+
+```bash
+cd /mnt/DATA/git/govoplan-core/webui
+PATH=/home/zemion/.nvm/versions/node/v22.22.3/bin:$PATH /home/zemion/.nvm/versions/node/v22.22.3/bin/npm run dev
+```
+
+## Module integration
+
+Backend entry point:
+
+```toml
+[project.entry-points."govoplan.modules"]
+mail = "govoplan_mail.backend.manifest:get_manifest"
+```
+
+Frontend package:
+
+```text
+@govoplan/mail-webui
+```
+
+The campaign module depends on this module for sending, append-to-Sent behavior, profile selection, and read-only mailbox inspection.
+
+Platform RBAC and governance rules are documented in `govoplan-core/docs/`.
+
+## Release packaging
+
+The repository root includes a `package.json` for git-based WebUI installs. It exports the package `@govoplan/mail-webui` from `webui/src` so release builds can depend on tagged git refs instead of local `file:` paths.