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    Proton Mail (unofficial)

    mcpkey · package
    io.github.sethbang/proton-mail-mcp · v1.0.2
    deploy just this

    Unofficial Proton Mail MCP — send, read, search & organize email over SMTP and IMAP

    run it

    on your own machines, one way per deploy method
    generated from the record, not tested yet
    # once, as root:
# as_mcp DIR COMMAND...: runs COMMAND as the mcp user in DIR, its home, sandboxed as the
# units are: a package's install scripts can write to DIR only, as the server later can
as_mcp() {
  local dir="$1"; shift
  systemd-run --quiet --wait --pipe --collect --uid=mcp --gid=mcp \
    -p WorkingDirectory="$dir" -p Environment=HOME="$dir" -p ReadWritePaths="$dir" \
    -p NoNewPrivileges=true -p ProtectSystem=strict -p ProtectHome=true -p PrivateTmp=true \
    -- "$@" </dev/null
}
install -d -m 0750 -o mcp -g mcp /var/lib/mcp/proton-mail
# proton-mail: its packages, installed whole before its unit starts (no session installs)
# npx takes a half-installed tree for installed: a rerun starts them afresh
systemctl stop mcp-my-agent-proton-mail.service 2>/dev/null || true
as_mcp /var/lib/mcp/proton-mail rm -rf /var/lib/mcp/proton-mail/.npm/_npx
as_mcp /var/lib/mcp/proton-mail npx --yes [email protected] -- true
as_mcp /var/lib/mcp/proton-mail npx --yes --package=supergateway@4 -- true

#!/usr/bin/env bash
# proton-mail (io.github.sethbang/proton-mail-mcp), recipe baremetal (generated).
# Generated by Hub for toolset "my-agent"; started by mcp-my-agent-proton-mail.service.
set -euo pipefail
export HOST=127.0.0.1 PORT=8101
exec npx -y supergateway@4 --stdio 'npx -y [email protected]' --outputTransport streamableHttp --stateful --host 127.0.0.1 --port 8101 --streamableHttpPath /mcp --healthEndpoint /healthz

[Unit]
Description=MCP server proton-mail (toolset my-agent), generated by Hub
After=network-online.target
Wants=network-online.target

[Service]
Type=simple
User=mcp
Group=mcp
EnvironmentFile=/etc/mcp/my-agent.env
Environment=HOME=/var/lib/mcp/proton-mail
WorkingDirectory=/var/lib/mcp/proton-mail
ExecStart=/opt/mcp/my-agent/bin/proton-mail.sh
Restart=on-failure
RestartSec=5
NoNewPrivileges=true
ProtectSystem=strict
ProtectHome=true
PrivateTmp=true
ReadWritePaths=/var/lib/mcp/proton-mail

[Install]
WantedBy=multi-user.target
    generated from the record, not tested yet
    docker run --rm -p 127.0.0.1:8101:8000 -e PROTONMAIL_USERNAME -e PROTONMAIL_PASSWORD -e PROTONMAIL_HOST -e PROTONMAIL_PORT -e PROTONMAIL_SECURE -e IMAP_HOST -e IMAP_PORT -e IMAP_SECURE -e IMAP_USERNAME -e IMAP_PASSWORD -e READONLY -e RESTRICT_OUTBOUND_TO_SELF -e ALLOW_FILE_DOWNLOAD_DIR -e ALLOW_EMPTY_FOLDER -e DEBUG node:22-alpine sh -c 'npx -y supergateway@4 --stdio '"'"'npx -y [email protected]'"'"' --outputTransport streamableHttp --stateful --host 0.0.0.0 --port 8000 --streamableHttpPath /mcp --healthEndpoint /healthz'
    generated from the record, not tested yet
    # Generated by Hub for toolset "my-agent" (2026-10-18T19:33:03+00:00).
# Each package server runs behind a stdio->HTTP bridge and listens on localhost only.
#   cp .env.example .env    # fill the ${VAR}s
#   docker compose up -d && bash smoke.sh
# Remote servers are not here: clients reach them directly (see clients/).
name: mcp-my-agent
services:
  proton-mail:
    image: node:22-alpine
    command:
    - sh
    - -c
    - npx -y supergateway@4 --stdio 'npx -y [email protected]' --outputTransport streamableHttp --stateful
      --host 0.0.0.0 --port 8000 --streamableHttpPath /mcp --healthEndpoint /healthz
    ports:
    - 127.0.0.1:8101:8000
    volumes:
    - npm-cache:/root/.npm
    healthcheck:
      test:
      - CMD-SHELL
      - wget -qO- http://127.0.0.1:8000/healthz || exit 1
      interval: 30s
      timeout: 5s
      retries: 5
      start_period: 2m
    restart: unless-stopped
    environment:
      PROTONMAIL_USERNAME: ${PROTONMAIL_USERNAME}
      PROTONMAIL_PASSWORD: ${PROTONMAIL_PASSWORD}
      PROTONMAIL_HOST: ${PROTONMAIL_HOST}
      PROTONMAIL_PORT: ${PROTONMAIL_PORT}
      PROTONMAIL_SECURE: ${PROTONMAIL_SECURE}
      IMAP_HOST: ${IMAP_HOST}
      IMAP_PORT: ${IMAP_PORT}
      IMAP_SECURE: ${IMAP_SECURE}
      IMAP_USERNAME: ${IMAP_USERNAME}
      IMAP_PASSWORD: ${IMAP_PASSWORD}
      READONLY: ${READONLY}
      RESTRICT_OUTBOUND_TO_SELF: ${RESTRICT_OUTBOUND_TO_SELF}
      ALLOW_FILE_DOWNLOAD_DIR: ${ALLOW_FILE_DOWNLOAD_DIR}
      ALLOW_EMPTY_FOLDER: ${ALLOW_EMPTY_FOLDER}
      DEBUG: ${DEBUG}
volumes:
  npm-cache: {}
  uv-cache: {}
    generated from the record, not tested yet
    # Generated by Hub for toolset "my-agent" (2026-10-18T19:33:03+00:00).
#   kubectl create namespace mcp
#   kubectl -n mcp create secret generic mcp-credentials --from-env-file=.env
#   kubectl apply -f kubernetes.yaml
# Services are cluster-internal: <name>.mcp.svc.cluster.local:8000/mcp. Put an ingress
# with auth in front before exposing any of them.
apiVersion: v1
kind: Namespace
metadata:
  name: mcp
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: proton-mail
  namespace: mcp
  labels: &id001
    app: proton-mail
spec:
  replicas: 1
  selector:
    matchLabels: *id001
  template:
    metadata:
      labels: *id001
    spec:
      containers:
      - name: proton-mail
        image: node:22-alpine
        ports:
        - containerPort: 8000
          name: http
        env:
        - name: PROTONMAIL_USERNAME
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: PROTONMAIL_USERNAME
        - name: PROTONMAIL_PASSWORD
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: PROTONMAIL_PASSWORD
        - name: PROTONMAIL_HOST
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: PROTONMAIL_HOST
        - name: PROTONMAIL_PORT
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: PROTONMAIL_PORT
        - name: PROTONMAIL_SECURE
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: PROTONMAIL_SECURE
        - name: IMAP_HOST
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: IMAP_HOST
        - name: IMAP_PORT
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: IMAP_PORT
        - name: IMAP_SECURE
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: IMAP_SECURE
        - name: IMAP_USERNAME
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: IMAP_USERNAME
        - name: IMAP_PASSWORD
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: IMAP_PASSWORD
        - name: READONLY
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: READONLY
        - name: RESTRICT_OUTBOUND_TO_SELF
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: RESTRICT_OUTBOUND_TO_SELF
        - name: ALLOW_FILE_DOWNLOAD_DIR
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: ALLOW_FILE_DOWNLOAD_DIR
        - name: ALLOW_EMPTY_FOLDER
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: ALLOW_EMPTY_FOLDER
        - name: DEBUG
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: DEBUG
        args:
        - sh
        - -c
        - npx -y supergateway@4 --stdio 'npx -y [email protected]' --outputTransport streamableHttp
          --stateful --host 0.0.0.0 --port 8000 --streamableHttpPath /mcp --healthEndpoint /healthz
        readinessProbe:
          httpGet:
            path: /healthz
            port: http
          initialDelaySeconds: 10
---
apiVersion: v1
kind: Service
metadata:
  name: proton-mail
  namespace: mcp
spec:
  selector:
    app: proton-mail
  ports:
  - port: 8000
    targetPort: http
    name: http
    generated from the record, not tested yet
    # Generated by Hub for toolset "my-agent" (2026-10-18T19:33:03+00:00).
# Credentials come from the Secret 'mcp-credentials' (kubectl create secret generic ... --from-env-file=.env).
# Each server under `servers` is one Deployment + Service; the keys after it configure
# upstream charts a worker verified.
servers:
  proton-mail:
    enabled: true
    replicas: 1
    port: 8000
    path: /mcp
    container:
      name: proton-mail
      image: node:22-alpine
      ports:
      - containerPort: 8000
        name: http
      env:
      - name: PROTONMAIL_USERNAME
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: PROTONMAIL_USERNAME
      - name: PROTONMAIL_PASSWORD
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: PROTONMAIL_PASSWORD
      - name: PROTONMAIL_HOST
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: PROTONMAIL_HOST
      - name: PROTONMAIL_PORT
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: PROTONMAIL_PORT
      - name: PROTONMAIL_SECURE
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: PROTONMAIL_SECURE
      - name: IMAP_HOST
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: IMAP_HOST
      - name: IMAP_PORT
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: IMAP_PORT
      - name: IMAP_SECURE
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: IMAP_SECURE
      - name: IMAP_USERNAME
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: IMAP_USERNAME
      - name: IMAP_PASSWORD
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: IMAP_PASSWORD
      - name: READONLY
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: READONLY
      - name: RESTRICT_OUTBOUND_TO_SELF
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: RESTRICT_OUTBOUND_TO_SELF
      - name: ALLOW_FILE_DOWNLOAD_DIR
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: ALLOW_FILE_DOWNLOAD_DIR
      - name: ALLOW_EMPTY_FOLDER
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: ALLOW_EMPTY_FOLDER
      - name: DEBUG
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: DEBUG
      args:
      - sh
      - -c
      - npx -y supergateway@4 --stdio 'npx -y [email protected]' --outputTransport streamableHttp
        --stateful --host 0.0.0.0 --port 8000 --streamableHttpPath /mcp --healthEndpoint /healthz
      readinessProbe:
        httpGet:
          path: /healthz
          port: http
        initialDelaySeconds: 10

# helm install my-agent helm/my-agent -n mcp

    in the cloud

    one click: the provider's deploy form opens filled in, in your own account
    koyeb
    deploy to koyeb

    The form opens with CHANGE_ME for each value you supply: PROTONMAIL_USERNAME, PROTONMAIL_PASSWORD, PROTONMAIL_HOST, PROTONMAIL_PORT, PROTONMAIL_SECURE, IMAP_HOST, IMAP_PORT, IMAP_SECURE, IMAP_USERNAME, IMAP_PASSWORD, READONLY, RESTRICT_OUTBOUND_TO_SELF, ALLOW_FILE_DOWNLOAD_DIR, ALLOW_EMPTY_FOLDER, DEBUG. Fill them in before you deploy.

    Clients connect to the service's https://…koyeb.app address plus /mcp.

    azure
    deploy to azuretemplate

    A Container Apps environment with one app per server, each with HTTPS ingress and one replica. The portal asks for each value you supply as a secure parameter; the deployment's outputs list the endpoints.

    connect to it

    copy what your client needs
    npx -y [email protected]
# env: PROTONMAIL_USERNAME, PROTONMAIL_PASSWORD, PROTONMAIL_HOST, PROTONMAIL_PORT, PROTONMAIL_SECURE, IMAP_HOST, IMAP_PORT, IMAP_SECURE, IMAP_USERNAME, IMAP_PASSWORD, READONLY, RESTRICT_OUTBOUND_TO_SELF, ALLOW_FILE_DOWNLOAD_DIR, ALLOW_EMPTY_FOLDER, DEBUG
    {
  "mcpServers": {
    "proton-mail": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "PROTONMAIL_USERNAME": "${PROTONMAIL_USERNAME}",
        "PROTONMAIL_PASSWORD": "${PROTONMAIL_PASSWORD}",
        "PROTONMAIL_HOST": "${PROTONMAIL_HOST}",
        "PROTONMAIL_PORT": "${PROTONMAIL_PORT}",
        "PROTONMAIL_SECURE": "${PROTONMAIL_SECURE}",
        "IMAP_HOST": "${IMAP_HOST}",
        "IMAP_PORT": "${IMAP_PORT}",
        "IMAP_SECURE": "${IMAP_SECURE}",
        "IMAP_USERNAME": "${IMAP_USERNAME}",
        "IMAP_PASSWORD": "${IMAP_PASSWORD}",
        "READONLY": "${READONLY}",
        "RESTRICT_OUTBOUND_TO_SELF": "${RESTRICT_OUTBOUND_TO_SELF}",
        "ALLOW_FILE_DOWNLOAD_DIR": "${ALLOW_FILE_DOWNLOAD_DIR}",
        "ALLOW_EMPTY_FOLDER": "${ALLOW_EMPTY_FOLDER}",
        "DEBUG": "${DEBUG}"
      }
    }
  }
}
    #!/usr/bin/env bash
# Registers every server with Claude Code (run once; `claude mcp list` to check).
set -euo pipefail
set -a; [ -f .env ] && source .env; set +a
claude mcp add proton-mail -e "PROTONMAIL_USERNAME=${PROTONMAIL_USERNAME}" -e "PROTONMAIL_PASSWORD=${PROTONMAIL_PASSWORD}" -e "PROTONMAIL_HOST=${PROTONMAIL_HOST}" -e "PROTONMAIL_PORT=${PROTONMAIL_PORT}" -e "PROTONMAIL_SECURE=${PROTONMAIL_SECURE}" -e "IMAP_HOST=${IMAP_HOST}" -e "IMAP_PORT=${IMAP_PORT}" -e "IMAP_SECURE=${IMAP_SECURE}" -e "IMAP_USERNAME=${IMAP_USERNAME}" -e "IMAP_PASSWORD=${IMAP_PASSWORD}" -e "READONLY=${READONLY}" -e "RESTRICT_OUTBOUND_TO_SELF=${RESTRICT_OUTBOUND_TO_SELF}" -e "ALLOW_FILE_DOWNLOAD_DIR=${ALLOW_FILE_DOWNLOAD_DIR}" -e "ALLOW_EMPTY_FOLDER=${ALLOW_EMPTY_FOLDER}" -e "DEBUG=${DEBUG}" -- npx -y [email protected]

    {
  "mcpServers": {
    "proton-mail": {
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "PROTONMAIL_USERNAME": "${PROTONMAIL_USERNAME}",
        "PROTONMAIL_PASSWORD": "${PROTONMAIL_PASSWORD}",
        "PROTONMAIL_HOST": "${PROTONMAIL_HOST}",
        "PROTONMAIL_PORT": "${PROTONMAIL_PORT}",
        "PROTONMAIL_SECURE": "${PROTONMAIL_SECURE}",
        "IMAP_HOST": "${IMAP_HOST}",
        "IMAP_PORT": "${IMAP_PORT}",
        "IMAP_SECURE": "${IMAP_SECURE}",
        "IMAP_USERNAME": "${IMAP_USERNAME}",
        "IMAP_PASSWORD": "${IMAP_PASSWORD}",
        "READONLY": "${READONLY}",
        "RESTRICT_OUTBOUND_TO_SELF": "${RESTRICT_OUTBOUND_TO_SELF}",
        "ALLOW_FILE_DOWNLOAD_DIR": "${ALLOW_FILE_DOWNLOAD_DIR}",
        "ALLOW_EMPTY_FOLDER": "${ALLOW_EMPTY_FOLDER}",
        "DEBUG": "${DEBUG}"
      }
    }
  }
}
    {
  "servers": {
    "proton-mail": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "[email protected]"
      ],
      "env": {
        "PROTONMAIL_USERNAME": "${PROTONMAIL_USERNAME}",
        "PROTONMAIL_PASSWORD": "${PROTONMAIL_PASSWORD}",
        "PROTONMAIL_HOST": "${PROTONMAIL_HOST}",
        "PROTONMAIL_PORT": "${PROTONMAIL_PORT}",
        "PROTONMAIL_SECURE": "${PROTONMAIL_SECURE}",
        "IMAP_HOST": "${IMAP_HOST}",
        "IMAP_PORT": "${IMAP_PORT}",
        "IMAP_SECURE": "${IMAP_SECURE}",
        "IMAP_USERNAME": "${IMAP_USERNAME}",
        "IMAP_PASSWORD": "${IMAP_PASSWORD}",
        "READONLY": "${READONLY}",
        "RESTRICT_OUTBOUND_TO_SELF": "${RESTRICT_OUTBOUND_TO_SELF}",
        "ALLOW_FILE_DOWNLOAD_DIR": "${ALLOW_FILE_DOWNLOAD_DIR}",
        "ALLOW_EMPTY_FOLDER": "${ALLOW_EMPTY_FOLDER}",
        "DEBUG": "${DEBUG}"
      }
    }
  }
}
    name: my-agent
target: local
servers:
- hub: io.github.sethbang/proton-mail-mcp
    • not probed yet: tools unpinned, ingest lists them

    tools

    Not probed yetThe tools appear once the hub or its worker has listed this entry. Running it still works: your client lists them on first start.