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    SMTP

    mcpkey · package
    io.github.ni-c/smtp-mcp · v0.2.0
    deploy just this

    MCP server that sends mail over SMTP, gated behind an allowlist and a human confirmation

    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/smtp
# smtp: 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-smtp.service 2>/dev/null || true
as_mcp /var/lib/mcp/smtp rm -rf /var/lib/mcp/smtp/.npm/_npx
as_mcp /var/lib/mcp/smtp npx --yes --package=@ni-c/[email protected] -- true
as_mcp /var/lib/mcp/smtp npx --yes --package=supergateway@4 -- true

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

[Unit]
Description=MCP server smtp (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/smtp
WorkingDirectory=/var/lib/mcp/smtp
ExecStart=/opt/mcp/my-agent/bin/smtp.sh
Restart=on-failure
RestartSec=5
NoNewPrivileges=true
ProtectSystem=strict
ProtectHome=true
PrivateTmp=true
ReadWritePaths=/var/lib/mcp/smtp

[Install]
WantedBy=multi-user.target
    generated from the record, not tested yet
    docker run --rm -p 127.0.0.1:8101:8000 -e SMTP_HOST -e SMTP_PORT -e SMTP_TLS -e SMTP_USER -e SMTP_PASSWORD -e SMTP_FROM -e SMTP_REPLY_TO -e SMTP_ALLOW_SEND -e SMTP_ALLOWED_RECIPIENTS -e SMTP_MAX_RECIPIENTS -e SMTP_MAX_SENDS_PER_HOUR -e SMTP_MAX_MESSAGE_BYTES -e SMTP_MAX_ATTACHMENT_BYTES -e SMTP_ATTACHMENT_DIR -e SMTP_ATTACHMENT_TYPES -e SMTP_SIGNATURE -e SMTP_AUDIT_LOG -e SMTP_ALLOW_TOOLS -e SMTP_DENY_TOOLS -e SMTP_INSECURE_TLS node:22-alpine sh -c 'npx -y supergateway@4 --stdio '"'"'npx -y @ni-c/[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" (2026-10-18T17:17:47+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:
  smtp:
    image: node:22-alpine
    command:
    - sh
    - -c
    - npx -y supergateway@4 --stdio 'npx -y @ni-c/[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:
      SMTP_HOST: ${SMTP_HOST}
      SMTP_PORT: ${SMTP_PORT}
      SMTP_TLS: ${SMTP_TLS}
      SMTP_USER: ${SMTP_USER}
      SMTP_PASSWORD: ${SMTP_PASSWORD}
      SMTP_FROM: ${SMTP_FROM}
      SMTP_REPLY_TO: ${SMTP_REPLY_TO}
      SMTP_ALLOW_SEND: ${SMTP_ALLOW_SEND}
      SMTP_ALLOWED_RECIPIENTS: ${SMTP_ALLOWED_RECIPIENTS}
      SMTP_MAX_RECIPIENTS: ${SMTP_MAX_RECIPIENTS}
      SMTP_MAX_SENDS_PER_HOUR: ${SMTP_MAX_SENDS_PER_HOUR}
      SMTP_MAX_MESSAGE_BYTES: ${SMTP_MAX_MESSAGE_BYTES}
      SMTP_MAX_ATTACHMENT_BYTES: ${SMTP_MAX_ATTACHMENT_BYTES}
      SMTP_ATTACHMENT_DIR: ${SMTP_ATTACHMENT_DIR}
      SMTP_ATTACHMENT_TYPES: ${SMTP_ATTACHMENT_TYPES}
      SMTP_SIGNATURE: ${SMTP_SIGNATURE}
      SMTP_AUDIT_LOG: ${SMTP_AUDIT_LOG}
      SMTP_ALLOW_TOOLS: ${SMTP_ALLOW_TOOLS}
      SMTP_DENY_TOOLS: ${SMTP_DENY_TOOLS}
      SMTP_INSECURE_TLS: ${SMTP_INSECURE_TLS}
volumes:
  npm-cache: {}
  uv-cache: {}
    generated from the record, not tested yet
    # Generated by Hub for toolset "my-agent" (2026-10-18T17:17:47+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: smtp
  namespace: mcp
  labels: &id001
    app: smtp
spec:
  replicas: 1
  selector:
    matchLabels: *id001
  template:
    metadata:
      labels: *id001
    spec:
      containers:
      - name: smtp
        image: node:22-alpine
        ports:
        - containerPort: 8000
          name: http
        env:
        - name: SMTP_HOST
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_HOST
        - name: SMTP_PORT
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_PORT
        - name: SMTP_TLS
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_TLS
        - name: SMTP_USER
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_USER
        - name: SMTP_PASSWORD
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_PASSWORD
        - name: SMTP_FROM
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_FROM
        - name: SMTP_REPLY_TO
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_REPLY_TO
        - name: SMTP_ALLOW_SEND
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_ALLOW_SEND
        - name: SMTP_ALLOWED_RECIPIENTS
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_ALLOWED_RECIPIENTS
        - name: SMTP_MAX_RECIPIENTS
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_MAX_RECIPIENTS
        - name: SMTP_MAX_SENDS_PER_HOUR
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_MAX_SENDS_PER_HOUR
        - name: SMTP_MAX_MESSAGE_BYTES
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_MAX_MESSAGE_BYTES
        - name: SMTP_MAX_ATTACHMENT_BYTES
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_MAX_ATTACHMENT_BYTES
        - name: SMTP_ATTACHMENT_DIR
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_ATTACHMENT_DIR
        - name: SMTP_ATTACHMENT_TYPES
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_ATTACHMENT_TYPES
        - name: SMTP_SIGNATURE
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_SIGNATURE
        - name: SMTP_AUDIT_LOG
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_AUDIT_LOG
        - name: SMTP_ALLOW_TOOLS
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_ALLOW_TOOLS
        - name: SMTP_DENY_TOOLS
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_DENY_TOOLS
        - name: SMTP_INSECURE_TLS
          valueFrom:
            secretKeyRef:
              name: mcp-credentials
              key: SMTP_INSECURE_TLS
        args:
        - sh
        - -c
        - npx -y supergateway@4 --stdio 'npx -y @ni-c/[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: smtp
  namespace: mcp
spec:
  selector:
    app: smtp
  ports:
  - port: 8000
    targetPort: http
    name: http
    generated from the record, not tested yet
    # Generated by Hub for toolset "my-agent" (2026-10-18T17:17:47+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:
  smtp:
    enabled: true
    replicas: 1
    port: 8000
    path: /mcp
    container:
      name: smtp
      image: node:22-alpine
      ports:
      - containerPort: 8000
        name: http
      env:
      - name: SMTP_HOST
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_HOST
      - name: SMTP_PORT
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_PORT
      - name: SMTP_TLS
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_TLS
      - name: SMTP_USER
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_USER
      - name: SMTP_PASSWORD
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_PASSWORD
      - name: SMTP_FROM
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_FROM
      - name: SMTP_REPLY_TO
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_REPLY_TO
      - name: SMTP_ALLOW_SEND
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_ALLOW_SEND
      - name: SMTP_ALLOWED_RECIPIENTS
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_ALLOWED_RECIPIENTS
      - name: SMTP_MAX_RECIPIENTS
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_MAX_RECIPIENTS
      - name: SMTP_MAX_SENDS_PER_HOUR
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_MAX_SENDS_PER_HOUR
      - name: SMTP_MAX_MESSAGE_BYTES
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_MAX_MESSAGE_BYTES
      - name: SMTP_MAX_ATTACHMENT_BYTES
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_MAX_ATTACHMENT_BYTES
      - name: SMTP_ATTACHMENT_DIR
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_ATTACHMENT_DIR
      - name: SMTP_ATTACHMENT_TYPES
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_ATTACHMENT_TYPES
      - name: SMTP_SIGNATURE
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_SIGNATURE
      - name: SMTP_AUDIT_LOG
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_AUDIT_LOG
      - name: SMTP_ALLOW_TOOLS
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_ALLOW_TOOLS
      - name: SMTP_DENY_TOOLS
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_DENY_TOOLS
      - name: SMTP_INSECURE_TLS
        valueFrom:
          secretKeyRef:
            name: mcp-credentials
            key: SMTP_INSECURE_TLS
      args:
      - sh
      - -c
      - npx -y supergateway@4 --stdio 'npx -y @ni-c/[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: SMTP_HOST, SMTP_PORT, SMTP_TLS, SMTP_USER, SMTP_PASSWORD, SMTP_FROM, SMTP_REPLY_TO, SMTP_ALLOW_SEND, SMTP_ALLOWED_RECIPIENTS, SMTP_MAX_RECIPIENTS, SMTP_MAX_SENDS_PER_HOUR, SMTP_MAX_MESSAGE_BYTES, SMTP_MAX_ATTACHMENT_BYTES, SMTP_ATTACHMENT_DIR, SMTP_ATTACHMENT_TYPES, SMTP_SIGNATURE, SMTP_AUDIT_LOG, SMTP_ALLOW_TOOLS, SMTP_DENY_TOOLS, SMTP_INSECURE_TLS. 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 @ni-c/[email protected]
# env: SMTP_HOST, SMTP_PORT, SMTP_TLS, SMTP_USER, SMTP_PASSWORD, SMTP_FROM, SMTP_REPLY_TO, SMTP_ALLOW_SEND, SMTP_ALLOWED_RECIPIENTS, SMTP_MAX_RECIPIENTS, SMTP_MAX_SENDS_PER_HOUR, SMTP_MAX_MESSAGE_BYTES, SMTP_MAX_ATTACHMENT_BYTES, SMTP_ATTACHMENT_DIR, SMTP_ATTACHMENT_TYPES, SMTP_SIGNATURE, SMTP_AUDIT_LOG, SMTP_ALLOW_TOOLS, SMTP_DENY_TOOLS, SMTP_INSECURE_TLS
    {
  "mcpServers": {
    "smtp": {
      "command": "npx",
      "args": [
        "-y",
        "@ni-c/[email protected]"
      ],
      "env": {
        "SMTP_HOST": "${SMTP_HOST}",
        "SMTP_PORT": "${SMTP_PORT}",
        "SMTP_TLS": "${SMTP_TLS}",
        "SMTP_USER": "${SMTP_USER}",
        "SMTP_PASSWORD": "${SMTP_PASSWORD}",
        "SMTP_FROM": "${SMTP_FROM}",
        "SMTP_REPLY_TO": "${SMTP_REPLY_TO}",
        "SMTP_ALLOW_SEND": "${SMTP_ALLOW_SEND}",
        "SMTP_ALLOWED_RECIPIENTS": "${SMTP_ALLOWED_RECIPIENTS}",
        "SMTP_MAX_RECIPIENTS": "${SMTP_MAX_RECIPIENTS}",
        "SMTP_MAX_SENDS_PER_HOUR": "${SMTP_MAX_SENDS_PER_HOUR}",
        "SMTP_MAX_MESSAGE_BYTES": "${SMTP_MAX_MESSAGE_BYTES}",
        "SMTP_MAX_ATTACHMENT_BYTES": "${SMTP_MAX_ATTACHMENT_BYTES}",
        "SMTP_ATTACHMENT_DIR": "${SMTP_ATTACHMENT_DIR}",
        "SMTP_ATTACHMENT_TYPES": "${SMTP_ATTACHMENT_TYPES}",
        "SMTP_SIGNATURE": "${SMTP_SIGNATURE}",
        "SMTP_AUDIT_LOG": "${SMTP_AUDIT_LOG}",
        "SMTP_ALLOW_TOOLS": "${SMTP_ALLOW_TOOLS}",
        "SMTP_DENY_TOOLS": "${SMTP_DENY_TOOLS}",
        "SMTP_INSECURE_TLS": "${SMTP_INSECURE_TLS}"
      }
    }
  }
}
    #!/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 smtp -e "SMTP_HOST=${SMTP_HOST}" -e "SMTP_PORT=${SMTP_PORT}" -e "SMTP_TLS=${SMTP_TLS}" -e "SMTP_USER=${SMTP_USER}" -e "SMTP_PASSWORD=${SMTP_PASSWORD}" -e "SMTP_FROM=${SMTP_FROM}" -e "SMTP_REPLY_TO=${SMTP_REPLY_TO}" -e "SMTP_ALLOW_SEND=${SMTP_ALLOW_SEND}" -e "SMTP_ALLOWED_RECIPIENTS=${SMTP_ALLOWED_RECIPIENTS}" -e "SMTP_MAX_RECIPIENTS=${SMTP_MAX_RECIPIENTS}" -e "SMTP_MAX_SENDS_PER_HOUR=${SMTP_MAX_SENDS_PER_HOUR}" -e "SMTP_MAX_MESSAGE_BYTES=${SMTP_MAX_MESSAGE_BYTES}" -e "SMTP_MAX_ATTACHMENT_BYTES=${SMTP_MAX_ATTACHMENT_BYTES}" -e "SMTP_ATTACHMENT_DIR=${SMTP_ATTACHMENT_DIR}" -e "SMTP_ATTACHMENT_TYPES=${SMTP_ATTACHMENT_TYPES}" -e "SMTP_SIGNATURE=${SMTP_SIGNATURE}" -e "SMTP_AUDIT_LOG=${SMTP_AUDIT_LOG}" -e "SMTP_ALLOW_TOOLS=${SMTP_ALLOW_TOOLS}" -e "SMTP_DENY_TOOLS=${SMTP_DENY_TOOLS}" -e "SMTP_INSECURE_TLS=${SMTP_INSECURE_TLS}" -- npx -y @ni-c/[email protected]

    {
  "mcpServers": {
    "smtp": {
      "command": "npx",
      "args": [
        "-y",
        "@ni-c/[email protected]"
      ],
      "env": {
        "SMTP_HOST": "${SMTP_HOST}",
        "SMTP_PORT": "${SMTP_PORT}",
        "SMTP_TLS": "${SMTP_TLS}",
        "SMTP_USER": "${SMTP_USER}",
        "SMTP_PASSWORD": "${SMTP_PASSWORD}",
        "SMTP_FROM": "${SMTP_FROM}",
        "SMTP_REPLY_TO": "${SMTP_REPLY_TO}",
        "SMTP_ALLOW_SEND": "${SMTP_ALLOW_SEND}",
        "SMTP_ALLOWED_RECIPIENTS": "${SMTP_ALLOWED_RECIPIENTS}",
        "SMTP_MAX_RECIPIENTS": "${SMTP_MAX_RECIPIENTS}",
        "SMTP_MAX_SENDS_PER_HOUR": "${SMTP_MAX_SENDS_PER_HOUR}",
        "SMTP_MAX_MESSAGE_BYTES": "${SMTP_MAX_MESSAGE_BYTES}",
        "SMTP_MAX_ATTACHMENT_BYTES": "${SMTP_MAX_ATTACHMENT_BYTES}",
        "SMTP_ATTACHMENT_DIR": "${SMTP_ATTACHMENT_DIR}",
        "SMTP_ATTACHMENT_TYPES": "${SMTP_ATTACHMENT_TYPES}",
        "SMTP_SIGNATURE": "${SMTP_SIGNATURE}",
        "SMTP_AUDIT_LOG": "${SMTP_AUDIT_LOG}",
        "SMTP_ALLOW_TOOLS": "${SMTP_ALLOW_TOOLS}",
        "SMTP_DENY_TOOLS": "${SMTP_DENY_TOOLS}",
        "SMTP_INSECURE_TLS": "${SMTP_INSECURE_TLS}"
      }
    }
  }
}
    {
  "servers": {
    "smtp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@ni-c/[email protected]"
      ],
      "env": {
        "SMTP_HOST": "${SMTP_HOST}",
        "SMTP_PORT": "${SMTP_PORT}",
        "SMTP_TLS": "${SMTP_TLS}",
        "SMTP_USER": "${SMTP_USER}",
        "SMTP_PASSWORD": "${SMTP_PASSWORD}",
        "SMTP_FROM": "${SMTP_FROM}",
        "SMTP_REPLY_TO": "${SMTP_REPLY_TO}",
        "SMTP_ALLOW_SEND": "${SMTP_ALLOW_SEND}",
        "SMTP_ALLOWED_RECIPIENTS": "${SMTP_ALLOWED_RECIPIENTS}",
        "SMTP_MAX_RECIPIENTS": "${SMTP_MAX_RECIPIENTS}",
        "SMTP_MAX_SENDS_PER_HOUR": "${SMTP_MAX_SENDS_PER_HOUR}",
        "SMTP_MAX_MESSAGE_BYTES": "${SMTP_MAX_MESSAGE_BYTES}",
        "SMTP_MAX_ATTACHMENT_BYTES": "${SMTP_MAX_ATTACHMENT_BYTES}",
        "SMTP_ATTACHMENT_DIR": "${SMTP_ATTACHMENT_DIR}",
        "SMTP_ATTACHMENT_TYPES": "${SMTP_ATTACHMENT_TYPES}",
        "SMTP_SIGNATURE": "${SMTP_SIGNATURE}",
        "SMTP_AUDIT_LOG": "${SMTP_AUDIT_LOG}",
        "SMTP_ALLOW_TOOLS": "${SMTP_ALLOW_TOOLS}",
        "SMTP_DENY_TOOLS": "${SMTP_DENY_TOOLS}",
        "SMTP_INSECURE_TLS": "${SMTP_INSECURE_TLS}"
      }
    }
  }
}
    name: my-agent
target: local
servers:
- hub: io.github.ni-c/smtp-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.