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Setting up a virtual Postfix mail server — Part 3

Setting up a virtual Postfix mail server — Part 3: Implementing DKIM, DMARC and rDNS

In the previous part of this tutorial series, we set up a mail server that could accept connections from mail clients like Gmail. This allowed us to send out domain emails using a mail client, instead of having to implement a mailbox on our server.

With our mail server’s basic functionality properly set up, we can now turn our attention to another problem — email deliverability. Spam email is a really big problem online, so many email providers have some kind of system in place to assess whether an incoming email is spam and either flag it, or reject it. Hence, after setting up our mail server, one thing we need to do is to ensure that our mail server conforms to certain email security standards, policies and protocols. This goes a long way to help us communicate to other mail servers that we are trustworthy, so that our emails will be deliverable.

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Setting up a virtual Postfix mail server — Part 2

Setting up a virtual Postfix mail server — Part 2: Sending emails with SASL

In the first part of this series, we set up a basic virtual mail server with Postfix that received emails for our domain and forwarded it to a mailbox of our choice. To round off the basic set of features for our mail server, we will be setting up Simple Authentication and Security Layer (SASL) to work with Postfix, so that we can access our mail server with a mailbox client (like Gmail) and send out emails from our domain.

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Setting up a virtual Postfix mail server — Part 1

Setting up a virtual Postfix mail server — Part 1: Receiving emails with mail forwarding

If you own a domain, and are looking to set up email hosting for it, you have a couple of options. You can either:

  1. Get a generic web hosting service that comes with a cPanel-based email hosting service, or;
  2. Use services like Google Workspace or Microsoft’s Enterprise Email Service.

The former option is cheap, but can be clunky to use and ineffective with blocking spam. The latter option — being specialised services — are generally much more accessible and effective with spam, but cost more.

There’s actually also a third option, and that is:

  1. Running your own mail server on a cloud server.

This means that you have to set up the server and maintain it, but it also means that you can have a cheap and effective mail server, instead of having to choose between one or the other.

In this series of articles, we are going to explore how we can set up a virtual mail server using a Mail Transfer Agent (MTA) called Postfix. This will be a fully-featured mail server, meaning that over the course of these articles, we will be building a mail server that can:

  1. Send and receive emails,
  2. Filter incoming emails for spam, and;
  3. Pass email policy checks, so that the emails it sends out are not flagged as spam.
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creating a farming rpg harvest moon part 8

Creating a Farming RPG (like Harvest Moon) in Unity — Part 8: Regrowing and Wilting Crops

Ever wanted to create a game like Harvest Moon in Unity? Check out Part 8 of our guide here, where we go through how to make crops that can be harvested multiple times, along with a system that allows for them to die. You can also find Part 7 of our guide here, where we went through how to grow and harvest crops.

A link to a package containing the project files up to Part 8 of this tutorial series can also be found at the end of this article, exclusive to Patreon supporters only.

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Creating a Farming RPG (like Harvest Moon) in Unity — Part 7: Growing and Harvesting Crops

Creating a Farming RPG (like Harvest Moon) in Unity — Part 7: Growing and Harvesting Crops

Ever wanted to create a game like Harvest Moon in Unity? Check out Part 7 of our guide here, where we go through how to grow and harvest crops. You can also find Part 6 of our guide here, where we went through how to create an in-game time management system.

A link to a package containing the project files up to Part 7 of this tutorial series can also be found at the end of this article, exclusive to Patreon supporters only.

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Creating a Farming RPG in Unity - Part 4: Item Management

Creating a Farming RPG (like Harvest Moon) in Unity — Part 4: Item Management

Ever wanted to create a game like Harvest Moon in Unity? Check out Part 4 of our guide here, where we go through how to create an item management system. You can also find Part 3 of our guide here, where we went through how to set up farmland elements that our player character will interact with.

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Creating a farming RPG in Unity - Part 3: Farmland Interaction

Creating a Farming RPG (like Harvest Moon) in Unity — Part 3: Farmland Interaction

Correction: In the video, we made a reference to the PlayerController component in the PlayerInteraction class. However, we later found that we didn’t make use of it at least in this part, so you can choose to skip that bit in the video for now, as it is redundant. They are highlighted in red in the finalised codes below.

Ever wanted to create a game like Harvest Moon in Unity? This is Part 3 of our guide, where we go through how to set up farmland elements that our player character will interact with. You can also find Part 2 of our guide here, where we went through how to set up our player camera.

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