A little-known feature about Gmail and Google Apps email is Google's portable SMTP server. Instead of having to manage your own outgoing mail server on your DigitalOcean VPS, you can simply configure Google's SMTP ser...

When setting up a web site or application under your own domain, it is likely that you will also want a mail server to handle the domain's incoming and outgoing email. While it is possible to run your own mail server,...

In this tutorial we are going to configure a mail server using Postfix, Dovecot, MySQL, and SpamAssassin on Ubuntu 12.04.

Postfix is an MTA (Mail Transfer Agent), an application used to send and receive email. In this tutorial, we will install and configure Postfix so that it can be used to send emails by local applications only.

Postfix is a popular open-source Mail Transfer Agent (MTA) that can be used to route and deliver email on a Linux system. It is estimated that around 25% of public mail servers on the internet run Postfix. In this gui...

Postfix is a mail transfer agent (MTA), an application used to send and receive email. In this tutorial, we will install and configure Postfix so that it can be used to send emails by local applications only — that is...

This tutorial will focus on installing and configuring OpenDKIM: an open source implementation of the DKIM sender authentication system.

Postfix is one of the most popular open source mail delivery agents (MTA) in the world. In this guide, we will demonstrate how to install and configure a simple Postfix setup on an Ubuntu 14.04 server.

Postfix is a popular open-source Mail Transfer Agent (MTA) that can be used to route and deliver email on a Linux system. It is estimated that around 25% of public mail servers on the internet run Postfix. In this gui...

A carefully tailored SPF record will reduce the likelihood of your domain name getting fraudulently spoofed and keep your messages from getting flagged as spam before they reach your recipients.

This tutorial will tell you how to setup a basic mail server and attempts to teach you a bit about the Postfix MTA (Mail Transfer Agent) in the process.

Mail-in-a-Box is an open source software bundle that makes it easy to turn your Ubuntu server into a full-stack email solution for multiple domains.

GPG, or GNU Privacy Guard, is a public key cryptography implementation. This allows for the secure transmission of information between parties and can be used to verify that the origin of a message is genuine. In this...

Postfix is a popular open-source Mail Transfer Agent (MTA) that can be used to route and deliver email on a Linux system. It is estimated that around 25% of public mail servers on the internet run Postfix. In this gu...

One way to send and receive email through your own custom domain is to use a third-party mail service, such as the mail service included with Google Apps (Gmail) or Zoho. The main benefit of using a third-party mail s...

One way to send and receive email through your own custom domain is to use a third-party mail service, such as Zoho or Google Apps. The main benefit of using a third-party mail service, as opposed to managing your own...

If you want to stop seeing ads when you check your email, or if you've moved from a public email service to your own domain, you can run your own webmail client (also known as a mail user agent or MUA). In this tutori...

Postfix is a mail transfer agent (MTA), an application used to send and receive email. It can be configured so that it can be used to send emails by local application only. In this tutorial, you'll install and configu...

Virtualmin is a web-based interface that simplifies the management of multiple virtual hosts through a single interface, similar to cPanel or Plesk. With Virtualmin, you can manage user...

In this DigitalOcean article, using the Docker Linux Container Engine, we learn how to package and contain WordPress applications on Ubuntu cloud servers and discover the most simple and secure way of deploying multip...