Before starting, ensure your server meets the basic requirements: Operating System: Linux (CentOS 7+, Debian 10+, or Ubuntu 20.04+). Root Access: You must have or root privileges. Dependencies: Install essential tools if they aren't present. sudo apt update && sudo apt install -y wget curl net-tools # For Debian/Ubuntu sudo yum install -y wget curl net-tools # For CentOS/RHEL Use code with caution. Copied to clipboard 2. Upload and Install the Package PowerMTA is a commercial product; you should have the file provided by Port25 (now SparkPost/Sizmek) For RHEL/CentOS: sudo rpm -ivh PowerMTA- r3.x86_64.rpm Use code with caution. Copied to clipboard For Debian/Ubuntu: sudo dpkg -i powermta- r3_amd64.deb Use code with caution. Copied to clipboard 3. License Activation PowerMTA will not start without a valid license file ( Copy your license file to the configuration directory: sudo cp license /etc/pmta/license Use code with caution. Copied to clipboard Set the correct permissions: sudo chown pmta:pmta /etc/pmta/license sudo chmod /etc/pmta/license Use code with caution. Copied to clipboard 4. Basic Configuration The main configuration file is located at /etc/pmta/config
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After installation, manually create directories: powermta 60r3 install