hostnamectl set-hostname mail.yourdomain.com
Test the installation by sending a test email from the command line using mailx or telnet.
Would you like a complete installation script template for 60r3 on Rocky 8, or a config example for virtual MTAs?
After updating, remove any default MTAs (like Postfix or Exim) that might interfere with PowerMTA. powermta 60r3 install
apt install -y perl wget libaio1
To ensure deliverability, you should sign your emails with DKIM.
The PowerMTA software is typically distributed as a .rpm (RHEL) or .deb (Ubuntu) package. Step 3.1: Uploading the Package hostnamectl set-hostname mail
<domain yourdomain.com> smtp-source-ip 1.2.3.4 # Your server's public IP </domain>
Before starting the installation, ensure your server environment meets the necessary infrastructure and software requirements. Hardware Minimums 2 Cores (4+ Cores recommended for high volume) RAM: 4 GB minimum (8 GB+ recommended)
Once you have the PowerMTA installation package (typically an .rpm or .deb file), proceed with the installation. rpm -ivh PowerMTA-6.0r3.x86_64.rpm Use code with caution. For Ubuntu/Debian: dpkg -i powermta-6.0r3.amd64.deb Use code with caution. apt install -y perl wget libaio1 To ensure
chmod 644 /etc/pmta/license chown pmta:pmta /etc/pmta/license
Open /etc/security/limits.conf and append the following:
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