# ============================================
# Postfix SMTP Relay - Environment Variables
# ============================================
# Copy this file to .env and configure your settings
# Supports: Maileroo, Mailtrap, SendGrid, and generic SMTP servers

# ============================================
# General Configuration
# ============================================

# Timezone (default: America/New_York)
TIMEZONE='America/New_York'

# Domain for outgoing mail
DOMAIN=example.com

# Server hostname (optional - defaults to container hostname)
SERVER_HOSTNAME=mail.example.com

# Port to expose on host (default: 25)
SMTP_LISTEN_PORT=25

# Data folder for logs, mail, and spool (default: current directory)
DATA_FOLDER=./data

# Optional: Custom networks to allow relay (comma-separated CIDR notation)
# SMTP_NETWORKS=192.168.1.0/24,10.0.0.0/8

# Optional: Add custom header tag to relayed messages
# SMTP_HEADER_TAG=MyRelay

# Debug mode (yes/no) - enables verbose logging
DEBUG=no

# ============================================
# SMTP Provider Configuration
# Choose ONE of the following configurations
# ============================================

# --------------------------------------------
# Option 1: Maileroo (Current Configuration)
# --------------------------------------------
SMTP_SERVER='smtp.maileroo.com'
SMTP_PORT=587
SMTP_USERNAME=noreply@example.com
SMTP_PASSWORD=your_maileroo_password_here

# --------------------------------------------
# Option 2: Mailtrap
# --------------------------------------------
# SMTP_SERVER='live.smtp.mailtrap.io'
# SMTP_PORT=587
# SMTP_USERNAME=your_mailtrap_username
# SMTP_PASSWORD=your_mailtrap_password

# For Mailtrap Sandbox (testing):
# SMTP_SERVER='sandbox.smtp.mailtrap.io'
# SMTP_PORT=2525
# SMTP_USERNAME=your_mailtrap_sandbox_username
# SMTP_PASSWORD=your_mailtrap_sandbox_password

# --------------------------------------------
# Option 3: SendGrid
# --------------------------------------------
# SMTP_SERVER='smtp.sendgrid.net'
# SMTP_PORT=587
# SMTP_USERNAME=apikey
# SMTP_PASSWORD=your_sendgrid_api_key_here

# --------------------------------------------
# Option 4: Generic SMTP Server
# --------------------------------------------
# SMTP_SERVER='smtp.example.com'
# SMTP_PORT=587
# SMTP_USERNAME=your_username
# SMTP_PASSWORD=your_password

# --------------------------------------------
# Option 5: Gmail (requires app password)
# --------------------------------------------
# SMTP_SERVER='smtp.gmail.com'
# SMTP_PORT=587
# SMTP_USERNAME=your_email@gmail.com
# SMTP_PASSWORD=your_app_password

# --------------------------------------------
# Option 6: Office 365 / Outlook
# --------------------------------------------
# SMTP_SERVER='smtp.office365.com'
# SMTP_PORT=587
# SMTP_USERNAME=your_email@outlook.com
# SMTP_PASSWORD=your_password

# ============================================
# Notes
# ============================================
#
# 1. The container automatically detects /16 subnet for relay
#    Additional networks can be added via SMTP_NETWORKS
#
# 2. All logs are sent to stderr and visible via:
#    docker logs postfix-relay
#
# 3. TLS is automatically enabled for known providers
#    (Maileroo, Mailtrap, SendGrid)
#
# 4. Health check monitors Postfix status every 30 seconds
#
# 5. For SendGrid, username must be "apikey" (literal string)
#
# ============================================