How to set up Zimbra mail server on CentOS

In this tutorial, we will examine the process of installing Zimbra mail server in CentOS Linux environment. Zimbra is my personal favorite when it comes to open-source mail servers as it comes with a number of useful features such as built-in calendar support, email filtering rules, a modern interface for both users and admins, spam […]
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How to use Mutt email client with encrypted passwords

Mutt is an open-source email client written for Linux/UNIX terminal environment. Together with Alpine, Mutt has the most devoted followers among Linux command-line enthusiasts, and for good reasons. Think of anything you expect from an email client, and Mutt has it: multi-protocol support (e.g., POP3, IMAP and SMTP), S/MIME and PGP/GPG integration, threaded conversation, color […]
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How to send email notifications using Gmail SMTP server on Linux

Suppose you want to configure a Linux app to send out email messages from your server or desktop. The email messages can be part of email newsletters, status updates (e.g., Cachet), monitoring alerts (e.g., Monit), disk events (e.g., RAID mdadm), and so on. While you can set up your own outgoing mail server to deliver […]
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How to access Gmail from the command line on Linux with Alpine

If you are a command-line lover, I am sure that you welcome with open arms any tool that allows you to perform at least one of your daily tasks using that powerful work environment, e.g., from scheduling appointments and managing finances to accessing Facebook and Twitter. In this post I will show you yet another […]
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How to set up MailScanner, Clam Antivirus and SpamAssassin in CentOS mail server

In the world of mail servers, MailScanner is one of the best open source software for virus scanning and spam detection. MailScanner relies on pre-installed anti-virus and anti-spam software to check incoming and outgoing emails for malicious content or patterns of spamming. This makes sure that the mail server does not participate in the distribution […]
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How to set up Clam Antivirus, SpamAssassin and MailScanner on Ubuntu mail server

Antivirus and anti-spam protection are the among the most important security features for a mail server. Unix/Linux based mail servers are typically invulnerable to malware and viruses, and there is a very slim chance that the server itself may get infected. On the other hand, the operating system of an end user device may not […]
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How to set up RainLoop webmail in Ubuntu server

Webmail is undoubtedly an essential part of any mail server. While native email client software has typically more features compared to webmail services, accessing IMAP or SMTP server ports via an email client from outside of the trusted network can sometimes be tricky. Moreover, while you need a designated workstation, laptop, or mobile device to […]
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How to configure a mail server with Postfix and Dovecot for different requirements

Mail server admins may often have to deal with different types of requirements based on service policies or customer-specific requests. This tutorial will cover common cases of mail server administration. More specifically, it will show how different mail server requirements can be met by tuning parameters of Postfix and Dovecot. Useful Postfix Commands Before we […]
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How to enable user authentication for a Postfix SMTP server with SASL

Every mail server administrator dreads his or her server becoming compromised by spammers. A lot of effort, time and even money is spent on securing mail servers and making sure that the servers do not become open relay. To combat against spambots in an SMTP server, Postfix in general uses the mynetworks parameter to specify […]
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