php_admin_value and php_value are directives used in PHP-FPM (FastCGI Process Manager) configuration, often seen in context with web server setups…

pSome internet access providers have port 25 disabled in their routers to prevent spam. If you run your own email…

The Nginx web server has a max. body size limit of 1 MB for requests as default. This might be…

You are using a Postfix mail server, and your system started sending masses of spam emails? The following guide will…

This guide will show you step-by-step how to requeue emails in Postfix on Linux. I've been using these steps on…

NFS (Network File System) is a distributed file system protocol developed by Sun Microsystems to share files and folders between…

If you run a firewall on your Linux server and want to use passive FTP connections, you have to define…

Getmail is a powerful email retrieval program for Ubuntu Linux that can be used to download and store emails from…

A database is a place where you store information. Cassandra is a type of database that is different from most…

Rspamd is a widely used email and spam filtering solution. It consists of a set of rule-based filters, blacklists, greylisting,…