Adding the configuration change for multiple provider, Making the service run in foreground and adding test
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Ketan Patel committed
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#!/bin/bash
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set -e
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# Colors for output
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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NC='\033[0m' # No Color
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# Parse arguments flexibly
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# Supports: recipient [from] [subject]
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# Or: container recipient [from] [subject]
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CONTAINER_NAME=""
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RECIPIENT=""
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FROM_EMAIL=""
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SUBJECT="Test Email from Postfix Relay"
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# Check if first argument looks like an email
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if [[ "$1" =~ @.*\. ]]; then
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# First arg is email - it's the recipient
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RECIPIENT="${1}"
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FROM_EMAIL="${2}"
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SUBJECT="${3:-Test Email from Postfix Relay}"
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else
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# First arg is not email - assume it's container name
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if [ -n "$1" ]; then
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CONTAINER_NAME="${1}"
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RECIPIENT="${2}"
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FROM_EMAIL="${3}"
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SUBJECT="${4:-Test Email from Postfix Relay}"
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fi
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fi
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# Function to print colored messages
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print_error() {
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echo -e "${RED}ERROR: $1${NC}" >&2
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}
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print_success() {
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echo -e "${GREEN}SUCCESS: $1${NC}"
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}
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print_info() {
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echo -e "${YELLOW}INFO: $1${NC}"
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}
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# Show usage if recipient is not provided
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if [ -z "$RECIPIENT" ]; then
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echo "Usage: $0 RECIPIENT_EMAIL [FROM_EMAIL] [SUBJECT]"
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echo " or: $0 CONTAINER_NAME RECIPIENT_EMAIL [FROM_EMAIL] [SUBJECT]"
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echo ""
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echo "Arguments:"
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echo " RECIPIENT_EMAIL - Email address to send test email to (required)"
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echo " FROM_EMAIL - From email address (optional, default: noreply@<domain>)"
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echo " SUBJECT - Email subject (default: 'Test Email from Postfix Relay')"
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echo " CONTAINER_NAME - Docker container name (optional, auto-detected)"
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echo ""
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echo "Examples:"
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echo " $0 user@example.com"
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echo " $0 user@example.com sender@mydomain.com"
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echo " $0 user@example.com sender@mydomain.com 'My Test Email'"
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echo " $0 my-postfix user@example.com sender@mydomain.com"
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echo ""
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exit 1
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fi
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# Auto-detect container name if not provided
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if [ -z "$CONTAINER_NAME" ]; then
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print_info "Auto-detecting container..."
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# Try to find container by image name pattern
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CONTAINER_NAME=$(docker ps --filter "ancestor=docker-postfix-postfix" --format '{{.Names}}' | head -n 1)
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# Fallback: try common naming patterns
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if [ -z "$CONTAINER_NAME" ]; then
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CONTAINER_NAME=$(docker ps --filter "name=postfix" --format '{{.Names}}' | head -n 1)
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fi
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if [ -z "$CONTAINER_NAME" ]; then
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print_error "Could not auto-detect container. Please specify container name."
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echo ""
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echo "Available containers:"
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docker ps --format "table {{.Names}}\t{{.Image}}\t{{.Status}}"
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echo ""
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echo "Usage: $0 CONTAINER_NAME RECIPIENT_EMAIL"
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exit 1
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fi
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print_success "Detected container: ${CONTAINER_NAME}"
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fi
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# Check if container exists
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if ! docker ps --format '{{.Names}}' | grep -q "^${CONTAINER_NAME}$"; then
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print_error "Container '${CONTAINER_NAME}' is not running"
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echo ""
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echo "Available containers:"
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docker ps --format "table {{.Names}}\t{{.Status}}\t{{.Ports}}"
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exit 1
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fi
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print_info "Container: ${CONTAINER_NAME}"
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# Get the port mapping for the container
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PORT_MAPPING=$(docker port "${CONTAINER_NAME}" 25 2>/dev/null | head -n 1)
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if [ -z "$PORT_MAPPING" ]; then
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print_error "Could not determine port mapping for container '${CONTAINER_NAME}'"
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exit 1
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fi
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# Extract host and port from mapping (format: 0.0.0.0:25 or 127.0.0.1:25)
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HOST=$(echo "$PORT_MAPPING" | cut -d: -f1)
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PORT=$(echo "$PORT_MAPPING" | cut -d: -f2)
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# Convert 0.0.0.0 to 127.0.0.1 for local communication
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if [ "$HOST" = "0.0.0.0" ]; then
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HOST="127.0.0.1"
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fi
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# Set default FROM email if not provided
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if [ -z "$FROM_EMAIL" ]; then
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# Try to get domain from container environment or use hostname
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DOMAIN=$(docker exec "$CONTAINER_NAME" printenv DOMAIN 2>/dev/null || echo "relay.local")
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FROM_EMAIL="noreply@${DOMAIN}"
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fi
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print_info "SMTP Server: ${HOST}:${PORT}"
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print_info "From: ${FROM_EMAIL}"
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print_info "Recipient: ${RECIPIENT}"
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print_info "Subject: ${SUBJECT}"
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echo ""
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# Generate email body with timestamp
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TIMESTAMP=$(date "+%Y-%m-%d %H:%M:%S %Z")
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EMAIL_BODY="This is a test email sent from the Postfix SMTP relay.
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Container: ${CONTAINER_NAME}
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Sent at: ${TIMESTAMP}
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SMTP Server: ${HOST}:${PORT}
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If you received this email, your Postfix relay is working correctly!
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---
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Automated test email"
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print_info "Sending test email..."
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echo ""
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# Method 1: Try using sendmail directly (most reliable for Postfix)
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print_info "Attempting to send via sendmail..."
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SENDMAIL_OUTPUT=$(docker exec -i "$CONTAINER_NAME" sendmail -v -f "$FROM_EMAIL" "$RECIPIENT" 2>&1 << EOFMAIL
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From: ${FROM_EMAIL}
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To: ${RECIPIENT}
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Subject: ${SUBJECT}
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${EMAIL_BODY}
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EOFMAIL
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)
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SENDMAIL_EXIT=$?
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if [ $SENDMAIL_EXIT -eq 0 ]; then
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print_success "Email queued successfully via sendmail"
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echo "$SENDMAIL_OUTPUT" | grep -i "queued\|sent" || true
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else
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print_error "Sendmail method failed"
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echo "Output: $SENDMAIL_OUTPUT"
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echo ""
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# Method 2: Try using mailx/mail command
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print_info "Trying alternative method using mail command..."
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MAIL_OUTPUT=$(docker exec "$CONTAINER_NAME" sh -c "
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echo '${EMAIL_BODY}' | mail -v -s '${SUBJECT}' -r '${FROM_EMAIL}' '${RECIPIENT}' 2>&1
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")
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MAIL_EXIT=$?
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if [ $MAIL_EXIT -eq 0 ]; then
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print_success "Email queued successfully via mail command"
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else
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print_error "Mail command failed"
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echo "Output: $MAIL_OUTPUT"
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echo ""
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print_info "Check container logs for more details:"
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echo " docker logs $CONTAINER_NAME"
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exit 1
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fi
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fi
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echo ""
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print_info "Checking mail queue..."
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docker exec "$CONTAINER_NAME" postqueue -p 2>/dev/null || echo "Queue check not available"
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echo ""
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print_success "Test complete! Check the recipient mailbox for the test email."
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echo ""
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print_info "You can monitor the logs with:"
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echo " docker logs -f ${CONTAINER_NAME}"
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echo ""
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