Tutorial: Installing Sendmail on macOS

In this tutorial, we will guide you through the process of installing Sendmail on macOS. Sendmail is an open-source email solution provided by Proofpoint.

Before you begin, please make sure that your macOS system meets the following prerequisites:

  • macOS version 10.13 or later
  • Xcode Command Line Tools installed

Now, let's get started.

Step 1: Download Sendmail

The first step is to download the Sendmail source files from the official website.

  1. Open your web browser and go to https://www.proofpoint.com/us/products/email-protection/open-source-email-solution.
  2. Click on the "Download the Source Code" button to download the Sendmail source files.
  3. Save the downloaded file to your desired location.

Step 2: Install Dependencies

Before we can install Sendmail, we need to install some dependencies. Open the Terminal app on your macOS and execute the following command:

sudo xcode-select --install && sudo installer -pkg /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg -target /

This command will install the required dependencies for Sendmail installation.

Step 3: Extract Sendmail Archive

Navigate to the directory where you saved the Sendmail source file and extract it using the following command:

tar xvzf sendmail-*.tar.gz

This will extract the Sendmail archive to a new directory named "sendmail".

Step 4: Configure Sendmail

Navigate to the Sendmail directory using the following command:

cd sendmail

Now, execute the following command to configure Sendmail:

./Build -c

This command will configure Sendmail with default options.

Step 5: Build Sendmail

Now that the Sendmail is configured, let's build it using the following command:

./Build

This command will build Sendmail, and it might take several minutes to complete.

Step 6: Install Sendmail

After the build process is complete, we are ready to install Sendmail. Execute the following command:

sudo ./Build install

This command will install Sendmail on your macOS system.

Step 7: Verify Sendmail Installation

To verify that Sendmail is installed correctly, execute the following command:

sendmail -d0.1 -bv root

This command will test the Sendmail configuration for the "root" user account. If the response is "deliverable: mailer local, user root", then Sendmail is installed correctly.

Congratulations! You have successfully installed Sendmail on your macOS system.

Conclusion

Sendmail is an open-source email solution that provides a reliable and secure email transfer mechanism. This tutorial guided you through the process of installing Sendmail on your macOS system. Remember to keep your Sendmail installation up-to-date to ensure the security and stability of your email system.