![]() The hostname of an email server should be similar to .ĬNAME Records - Add CNAME records for Postfix Admin and RoundCube. ![]() Make sure that your domain record is configured as shown below.Ī Record - An A Record exists having the hostname and IP address of your email server. This section provides the configurations required at the DNS record to continue installing the email server. We are required to submit a form requesting AWS to remove the port 25 restrictions as explained here. and .Īlso, confirm with your hosting provider to allow sending bulk-emails by removing the restrictions on port 25. You can also include two additional sub-domains to host the Postfix Admin and Roundcube i.e. You may follow How To Install Let's Encrypt For Apache On Ubuntu. It also expects that a valid SSL certificate is installed for the hostname assigned to the email server. On AWS EC2, the security group assigned to the instance must be updated to close these ports for external communication over the internet.Ī valid domain name is pointing to your server and you have access to update the domain record. UFW is the default Firewall configuration tool used on the Ubuntu 20.04 LTS. Make sure that the ports 25 (SMTP), 587 (SMTP over TLS), 465 (SMTPS), 143 (IMAP), 993 (IMAPS), 110 (POP3), 995 (POP3S) are not-opened or closed using appropriate firewall tool. You may follow How To Install MySQL 8 on Ubuntu 20.04 LTS, How To Install PHP 7 On Ubuntu 20.04 LTS, How To Install Apache 2 On Ubuntu 20.04 LTS, Configure Virtual Host On Apache and How To Install Let's Encrypt For Apache On Ubuntu. It also assumes that the MySQL, PHP, and Apache Web Server are already installed. It also assumes that you have either root privileges or a regular user with sudo privileges. You can follow Spin Up Ubuntu 20.04 LTS Server On Amazon EC2 to install Ubuntu 20.04 LTS. This tutorial assumes that you have already installed Ubuntu 20.04 LTS server for production usage. Also, add notes by submitting your valuable comments in case you have some suggestions or better configuration options.You may further enhance it based on your actual requirements. You will have a complete email server ready for production usage by following this tutorial.I have tried to keep this guide short without explaining the configurations and parameters.You can further refine and update the configurations based on your requirements. This tutorial tries to cover all the major aspects to set up a production email server. ![]() Make sure to replace and with your actual domain and server hostname. This tutorial used domain for demonstration purposes.Also, do not rush while installing your email server and make sure that you have sufficient time to debug if something goes wrong. Now take a deep breath, calm down, have a cup of tea/coffee or beer mug, put light music, relax, and follow the instructions in the subsequent sections of this tutorial. Make sure that you execute all the commands and apply all the configurations since it's really difficult to debug on missing even a single configuration. This is a lengthy tutorial, involving several installation commands and configurations.All the steps mentioned in this tutorial are executed and tested on Ubuntu 20.04 LTS. In the end, it also shows how to check the email server health using the standard tools. It also provides configurations to manage virtual domains and virtual users using the MySQL database management system. This tutorial provides all the steps required to install Postfix as MTA, Dovecot as MDA, Postgrey as Greylisting Policy Server, Clam as Antivirus, Amavis as Content Filter, SpamAssassin as Email Spam Filter, Postfix Admin to admin domains and users, and RoundCube as Web Interface for the users. This guide provides the complete steps required to install an email or mail server on Ubuntu 20.04 LTS. A web-based interface is also required to access the email server to read/write/manage emails. Apart from the MTA and MDA, an email server also need tools for greylisting the servers, antivirus to scan the emails for well-known viruses, and spam detection tool to filter the spam emails. At the same time, the MDA reads the email queue of the MTA and save the emails to the inboxes by identifying the corresponding users. The MTA is required to communicate or relay emails between the internet and the email server to send and receive emails to other servers. The major components or activities involved in setting or installing a complete email server for production usage involves MTA (Mail Transfer Agent), MDA (Mail Delivery Agent), Antivirus, Spam Detection, and Web Interface.
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