Automatic Mail Server Setup Based on PowerMTA and Dovecot

Setting up your own SMTP server no longer requires system administration experience
With the script, a fresh installation takes just a few minutes

Why should you have your own mail server?

⚙️ Only what’s necessary — no third-party control panels or unnecessary clutter

🛡️ Integration with fail2ban, protection against brute-force attacks on SASL/Dovecot

🧹 Spam filtering: SpamAssassin works right after installation, with the option to add additional filters

🔒 Support for TLS/SSL — automatic installation of Let's Encrypt certificates for your domains

♻️ Automatic SSL renewal for continuous email protection — using Certbot from Let's Encrypt, configured for automatic certificate renewal

🌐 Webmail Roundcube — a modern, user-friendly, and fully customizable interface with support for IMAP, filters, address book, and plugins

The installer is compatible with the most reliable and up-to-date systems

AlmaLinux
8 / 9

Debian
11 / 12

Ubuntu LTS
22.04 — 24.04

CentOS Stream
8 - 9

Example of deploying a mail server based on Ubuntu 24.04

Setting up a mail server for a single domain using one IP address

Setting up a mail server with support for multiple domains and multiple IP addresses

Option	Start	Professional	Business
MTA (Mail Transfer Agent)	Postfix	PowerMTA + Postfix	PowerMTA + Postfix
TLS/SSL
OpenDKIM
Anti-spam filter (SpamAssassin)
Fail2Ban (Attack Protection)
Roundcube (Web Interface)
Support for Multiple IPs and Domains
PowerMTA web monitoring panel
PowerMTA configuration		Default	Custom
IP and domain rotation setup