Set up Email on a 1&1 Cloud Server With Plesk

For any 1&1 Cloud Server with Plesk, applications like email should always be installed and managed through the Plesk interface. Follow the instructions in this tutorial to learn how to set up email services on a Plesk server. [...]  

Set up a Postfix Mail Server With Dovecot and Squirrelmail on Ubuntu 16.04

Learn how to set up a mail server on a 1&1 Cloud Server running Ubuntu 16.04. This tutorial features Postfix as an SMTP server, Dovecot for POP/IMAP functionality, and Squirrelmail as a webmail program for users to check and receive email from a web browser. The tutorial will also walk you through the process of creating and using a self-signed SSL certificate for use in securing incoming and outgoing email connections. [...]  

Set up a Postfix Mail Server With Dovecot and RoundCube on CentOS 7

Learn how to set up a mail server on a 1&1 Cloud Server running CentOS 7. This tutorial features Postfix as an SMTP server, Dovecot for POP/IMAP functionality, and RoundCube as a webmail program for users to check and receive email from a web browser. The tutorial will also walk you through the process of creating and using a self-signed SSL certificate for use in securing incoming and outgoing email connections. [...]