Specialized platform offering comprehensive guidance on mail server-related topics, including installation, troubleshooting, security, performance optimization, and email migration.
Open relay attacks pose a serious threat to email servers, allowing unauthorized users to send spam and malicious emails through your system. This guide provides a detailed, step-by-step process to secure your email server against open relay vulnerabilities and ensure safe email handling. Table of Contents 1. Introduction to Open Relay Attacks An open relay … Read more
Amavis (A Mail Virus Scanner) is a versatile content filter used with mail servers to scan for spam, viruses, and other malicious content. It integrates seamlessly with popular MTAs like Postfix, Exim, and Sendmail. This guide will provide a step-by-step process to install, configure, and optimize Amavis for maximum protection against spam. Table of Contents … Read more
Spam is a persistent problem for any mail server administrator. SpamAssassin is a powerful, open-source tool that effectively identifies and filters spam using advanced rules and machine-learning techniques. This guide will walk you through every step of installing, configuring, and optimizing SpamAssassin to protect your mail server from unwanted messages. Table of Contents 1. Introduction … Read more
Email spoofing and phishing attacks are growing threats to businesses and individuals. Cybercriminals use these techniques to trick recipients into sharing sensitive information, clicking malicious links, or downloading malware. In this guide, we’ll explore how email spoofing and phishing work, their dangers, and the best practices to prevent these threats effectively. What is Email Spoofing? … Read more
Email is a crucial communication tool for businesses and individuals. However, delayed email delivery can disrupt workflows, cause misunderstandings, and impact customer satisfaction. Understanding the causes of email delays and how to resolve them is essential for maintaining a smooth email experience. This guide explores the common causes of email delivery delays, provides actionable solutions, … Read more
Email deliverability is crucial for businesses, especially when communicating with clients, promoting services, or sharing critical updates. However, emails getting marked as spam is a common issue that can damage your reputation and prevent essential messages from reaching recipients. In this guide, we’ll explore the technical reasons behind emails being flagged as spam, provide effective … Read more
Email bounce backs occur when messages cannot be successfully delivered to the recipient. Understanding the common causes of these issues is crucial for maintaining smooth email communication. This article provides an in-depth look at the most frequent reasons for bounce backs and how to resolve them effectively. 1. Invalid Recipient Address Cause: Symptoms: Solution: Example … Read more
Email delivery failures, also known as “bounce backs,” occur when an email cannot be delivered to the intended recipient. Bounced emails can disrupt communication and affect the reputation of your mail server. In this guide, we’ll cover: 1. Types of Email Bounces a) Hard Bounce A hard bounce happens when the email cannot be delivered … Read more
Mailcow is an open-source mail server suite that provides a robust, Docker-based solution for handling email. This guide will walk you through the process of installing, configuring, and optimizing Mailcow. Table of Contents 1. Introduction to Mailcow Mailcow provides a modern, feature-rich mail server built on Docker. It includes services like Postfix, Dovecot, and rspamd … Read more
Securing SMTP (Simple Mail Transfer Protocol) and IMAP (Internet Message Access Protocol) is crucial for protecting sensitive email communications. This guide will walk you through a detailed, step-by-step process for setting up and securing SMTP/IMAP servers using industry best practices. What is SMTP and IMAP? Why Secure SMTP/IMAP? Prerequisites Ensure you have the following before … Read more