install mailpit

mailpit.sh

#!/bin/bash

set -e

VERSION="v1.27.3"
ARCH="linux-amd64"
ARCHIVE_URL="https://github.com/axllent/mailpit/releases/download/${VERSION}/mailpit-${ARCH}.tar.gz"
TMP_DIR="/tmp/mailpit-install"
BIN_PATH="/usr/local/bin/mailpit"
SERVICE_FILE="/etc/systemd/system/mailpit.service"

echo "📦 Downloading Mailpit ${VERSION}..."

# Prepare temp dir
mkdir -p "$TMP_DIR"
cd "$TMP_DIR"

# Download archive
curl -sL "$ARCHIVE_URL" -o mailpit.tar.gz

# Extract archive
tar -xzf mailpit.tar.gz

# Find binary
if [ ! -f "mailpit" ]; then
  echo "❌ Mailpit binary not found after extraction"
  exit 1
fi

# Install binary
mv mailpit "$BIN_PATH"
chmod +x "$BIN_PATH"

# Create system user if missing
if ! id "mailpit" &>/dev/null; then
  echo "👤 Creating system user 'mailpit'..."
  useradd --system --no-create-home --shell /usr/sbin/nologin mailpit
fi

# Create systemd unit
echo "🛠 Creating systemd service..."
cat <<EOF > "$SERVICE_FILE"
[Unit]
Description=Mailpit - SMTP dev mail server
After=network.target

[Service]
ExecStart=$BIN_PATH
Restart=always
User=mailpit
Group=mailpit
Environment=MAILPIT_UI_PORT=8025
Environment=MAILPIT_SMTP_PORT=1025

[Install]
WantedBy=multi-user.target
EOF

# Reload systemd and start service
echo "🚀 Enabling and starting mailpit service..."
systemctl daemon-reexec
systemctl daemon-reload
systemctl enable mailpit
systemctl start mailpit

echo "✅ Mailpit v${VERSION} installed and running!"
echo "   Web UI:    http://localhost:8025"
echo "   SMTP Port: 1025"

# Clean up
rm -rf "$TMP_DIR"