Sendmail is an open-source email solution developed by Proofpoint that is widely used as a mail transport agent (MTA) on Unix-like operating systems. This tutorial will guide you through the steps of installing Sendmail on Debian Latest from Proofpoint.
First, you need to download the Sendmail source archive from the Proofpoint website. Open your web browser and navigate to https://www.proofpoint.com/us/products/email-protection/open-source-email-solution. Scroll down to the “Download” section and download the latest stable release of Sendmail.
Before proceeding with the installation, you need to install the required packages for compiling Sendmail from source. Open the terminal and run the following command:
sudo apt-get update
sudo apt-get install build-essential m4
Extract the Sendmail source archive you downloaded in Step 1 to a suitable directory using the following command:
tar -zxvf sendmail-xxxx.tar.gz
Replace xxxx with the version number of the Sendmail archive you downloaded.
Change the working directory to the extracted Sendmail archive, configure the build environment, and compile Sendmail using the following commands:
cd sendmail-xxxx/cf/cf
sh Build sendmail.cf
cd ../..
sh Build
Replace xxxx with the version number of the Sendmail archive you downloaded.
After compiling, install the Sendmail binaries, configuration files, and documentation using the following command:
sudo make install
Configure Sendmail by editing the sendmail.mc file located in the /etc/mail directory. Use your preferred text editor to make the necessary changes and save the file.
sudo nano /etc/mail/sendmail.mc
Make sure to uncomment the following two lines to enable outgoing email:
dnl define(`SMART_HOST',`smtp.your.provider')
define(`SMART_HOST',`smtp.gmail.com')
Replace smtp.gmail.com with your SMTP hostname.
Rebuild the sendmail configuration files using the following command:
sudo make -C /etc/mail
sudo /etc/init.d/sendmail reload
Test your Sendmail installation by sending an email to yourself using the mail command.
echo "Test email" | mail -s "Subject" username@example.com
Replace username@example.com with your email address.
Congratulations! You have successfully installed and configured Sendmail on Debian Latest from Proofpoint.
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