Tutorials

Step-by-step guides for your cloud servers: installs, configuration and best practices.

How to monitor uptime with Uptime Kuma

Find out immediately when your site goes down, with Uptime Kuma and email or Telegram notifications.

The standard combo for professional monitoring: Prometheus collects metrics, Grafana displays them in dashboards.

When you have several servers, gather all logs in one searchable place.

An SMTP relay sends your emails through a service with good reputation, ideal for apps without their own mail server.

A misconfigured mail server becomes a spam source. Here are the essential security rules.

Configure your app to send transactional emails (confirmations, password resets) over SMTP.

Rspamd is a modern, fast spam filter. Here is how to use it to keep your inbox clean.

If your emails are rejected, your IP might be on a blocklist. Here is how to check and what to do.

The pros, cons and what you need to know before hosting email on your own server.

Check whether your emails reach the inbox and what spam score they have, with free tools.

Read your email from the browser with Roundcube, a clean webmail interface for your mail server.

Mailcow gives you a complete mail server (SMTP, IMAP, webmail, anti-spam) in Docker containers, ready in minutes.