How to Setup Postfix as Send-only Mail Server on an Ubuntu 18.04 Dedicated Server or VPS:

Postfix as Send-only Mail Server on an Ubuntu 18.04

How to Setup Postfix as Send-only Mail Server on an Ubuntu 18.04 Dedicated Server or VPS:

Posted on |

Are you searching for a postfix mail server configuration in Linux step-by-step? Do not worry, as Dataservermarket is here to provide complete insights on setting a postfix mail server configuration in Linux step-by-step. Also, before starting with the comprehensive guide of setting up a postfix mail server configuration in Linux step-by-step, Dataservermarket wants to show an overview of postfix mail server configuration in Linux step-by-step

Let’s dive into the overview of postfix mail configuration in Linux step-by-step explained by Dataservermarket.

Summary of postfix mail configuration in Linux step-by-step explained by Dataservermarket:

Dataservermarket explains that setting up a postfix mail server configuration in Linux step-by-step is a widely used open-source mail transfer agent (MTA) that delivers mails and is used for routing purposes on the Internet. There is a need to install and set up postfix mail server configuration in Linux step-by-step if you want crucial emails from Ubuntu 18.04. 

Postfix mail server configuration in Linux step-by-step is easy to administer, quick, and resource-efficient, as explained by Dataservermarket

Postfix mail server configuration in Linux step-by-step emails are security-focused and have an active development team. According to the recent reports by Security Space, postfix mail server configuration in Linux step-by-step confirms 33% of all emails sent. 

The comprehensive guide prepared by Dataservermarket focuses on setting up postfix mail server configuration in Linux step-by-step on your Ubuntu 18.04 so that you don’t miss important emails from your system.

Pre-requisites of setting up postfix mail server configuration in Linux step-by-step explained by Dataservermarket:

  • Domain name
  • A non-root user with pseudo privileges
  • Ubuntu 18.04 server

Get Mail Server Coupons with Excited Cashbank on Dataservermarket

How to set up postfix mail server configuration in Linux step-by-step by Dataservermarket:

Let’s look at some of the steps in setting up postfix mail server configuration in Linux step-by-step explained by Dataservermarket:

Step 1: Indicate your server to a fully qualified domain name:

The first step in setting up postfix mail server configuration in Linux step-by-step recommended by Dataservermarket is ensuring that your server hostname is set to a fully qualified domain name (FQDN).

An FQDN is a unique address that helps in setting up postfix mail server configuration in Linux step-by-step and identifies your server on the Internet, consisting of two parts:

  • a hostname
  • a domain name

The basic syntax of an FQDN in setting up postfix mail server configuration in Linux step-by-step is:

$ [host name].[domain].[tld].

An example of setting up postfix mail server configuration in Linux step-by-step is:

mail.example.com

To set up postfix mail server configuration in Linux step-by-step in FQDN on your Ubuntu 18.04, first, edit the ‘/etc/hostname file and change the name to ‘mail.’ 

Depending on your needs, you may use any other name to set up postfix mail server configuration in Linux step-by-step

$ sudo nano /etc/hostname

‘/etc/hostname’ File excerpt

mail

To set up a postfix mail server, press Ctrl+X, Y, and Enter to save the changes in that file. To enter the domain name part in setting up a postfix mail server and creating an FQDN, we will require to unlock the ‘etc/hosts file:

$ sudo nano /etc/hosts

Set the values to set up a postfix mail server as mentioned below. Recognize to substitute ‘example.com’ and ‘198.51.100.3’ with your domain title and server public IP address for setting up a postfix mail server.

127.0.0.1 localhost

127.0.1.1 mail.example.com mail

198.51.100.3 mail.example.com mail

Stage 2: Establish a postfix mail server:

Update the package information and install a postfix mail server by issuing the following command:

$ sudo apt-get update

To install a postfix mail server with all associated utilities for testing mails, issue the following command:

$ sudo apt-get install mailutils

The system will present you to customize the postfix mail server before installing a postfix mail server

Choose “Internet site” for general email information type in a postfix mail server. Press “TAB” to emphasize “OK” and then push “Enter” in a postfix

Enter your domain name in the “System name” field in a postfix. Press “TAB” and “Enter” to proceed in a postfix. Your postfix installation will be successful.

Step 3: Configure Postfix:

Most postfix configuration settings are available in ‘/etc/postfix/main.cf’ file. We will make one primary difference in the file to ensure that postfix can only send emails from our local servers to prevent the spammers from using it. 

To do this in a postfix, open the configuration file in a postfix using the following command:

$ sudo nano /etc/postfix/main.cf

Examine the entry’ inet_interface’ and modify its value in a postfix from ‘all’ to ‘loopback-only.’ 

inet_interfaces = loopback-only

Also, check the entry in ‘myhostname’ in postfix and change its value to the fully qualified domain name server in a postfix using the following command:

myhostname=mail.example.com

Use Ctrl+X, Y, and Enter to preserve the differences in a postfix

Step 4: Restart postfix:

Once you have made the changes in postfix, you need to restart a postfix server to select the new modifications by running the command below:

$ sudo service postfix restart

Step 5: Test the email functionality in postfix:

Once we have installed the postfix with all associated mail utilities for sending emails in postfix, we can use the following command to test the email server in postfix. To do this, run the following command in postfix:

$ echo “This email demonstrates that Postfix is operating” | mail -s “Testing Posfix” emailuser@example.com

Recognize to substitute email@username.com with the correct address in the postfix. You can send emails to Yahoo, Gmail, and Microsoft accounts through postfix

If it is delivered successfully, you can move ahead and check your email address in postfix. Remember to check the spam folder in postfix

Wrapping up:

Dataservermarket explains the above step-by-step guide in configuring the postfix mail server. If you face any issues configuring postfix, check with your hosting provider. Ensure that they do not block Port 25 and if they have done so, request to enable it immediately in postfix. If you followed the comprehensive guide in configuring the postfix mail server explained by Dataservermarket, the email notifications should work pretty well in postfix

Read More Blog- How to Set Up Email Hosting with Microsoft Office 365 Email

Leave a Reply

Your email address will not be published. Required fields are marked *