In this step, you’ll test whether Postfix can send emails to an external email account using the mail command, which is part of the mailutils package that was installed in Step 1. However, to configure Postfix in a manner that scales and that does not present issues for such a setup involves additional configurations that are beyond the scope of this article. If you’re hosting multiple domains on a single server, the other domains can also be passed to Postfix using the mydestination directive. With the file open, scroll down until you see the following section. To make the change, open the main Postfix configuration file using nano or your favorite text editor. In this step, you’ll read how to configure Postfix to process requests to send emails only from the server on which it is running, that is, from localhost.įor that to happen, Postfix needs to be configured to listen only on the loopback interface, the virtual network interface that the server uses to communicate internally. ![]() When you’ve finished, press TAB, then ENTER.Īfter installation has completed successfully, proceed to step two. If it shows a subdomain like, change it to just. The System mail name should be the same as the name you assigned to the server when you were creating it. That’s the recommended option for this tutorial, so press TAB, then ENTER.Īfter that, you’ll get another window just like the one in the next image. Near the end of the installation process, you will be presented with a window that looks exactly like the one in the image below. Installing mailtuils will install Postfix as well as a few other programs needed for Postfix to function. The most efficient way to install Postfix and other programs needed for testing email is to install the mailutils package.įinally, install Postfix. In this step, you’ll learn how to install Postfix. The output should match the name you gave the Droplet when it was being created. You can verify the server’s hostname by typing hostname at the command prompt. Note that your server’s hostname should match this domain or subdomain. ![]() You can set that up by following this host name tutorial ![]() One Ubuntu 16.04 Droplet set up with the Ubuntu 16.04 initial setup guide, including creating a sudo non-root userĪ valid domain name, like, pointing to your server. You can learn more about this partnership and get started using SendGrid by checking out our DigitalOcean’s SendGrid Marketplace App. As a part of this new policy, we have partnered with SendGrid so our customers can still send emails with ease. Note: As of June 22, 2022, DigitalOcean is blocking SMTP for all new accounts.
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