ISPmail Stretch

Testing IMAP access You have already finished the configuration of Dovecot so fetching emails using the IMAP protocol will already work. Let’s give it a try using a simple but powerful IMAP client: mutt. mutt -f imaps://john@example.org@webmail.example.org The connection URL may look a little confusing because of the two “@” characters. Usually mutt expects imaps://user@server. […]

This chapter of our journey leads us to Dovecot – the software that… gets emails from Postfix and saves them to disk executes user-based “sieve” filter rules (can be used to e.g. move emails to different folders based on certain criteria or send automated vacation responses) allows the user to fetch emails using POP3 or IMAP Before

In a previous chapter we made sure that Postfix knows which emails it is allowed to receive. Now what to do with the email? It has to be stored to disk for your users. You could let Postfix handle that using its built-in mail delivery agent (MDA) called “virtual”. However compared to the capabilities that Dovecot

In the previous chapter you have created the SQL database schema and inserted some data to play with. The entry point for all email on your system is Postfix. So we need to tell Postfix how to get the information from the database. First let’s tell it how to find out if a certain domain is a vaild

Now it’s time to prepare the MariaDB database that stores information controlling your mail server. In the process you will have to enter SQL queries – the language of relational database servers. You may enter them on the ‘mysql’ command line. But if you are less experienced with MySQL you may prefer using a web-based tool called

(If you are unfamiliar with the abbreviation “TLS“: it is the successor to SSL but works one the same principle.) The internet is the best invention since sliced bread but it has become an evil place more than ever. We are dealing with script kiddies, out-of-control secret services and organized crime on a large scale. It

Your server should now be booted up and ready. So you can login at the console or via SSH (secure shell). By default the server will not allow logging in as “root” for security reasons. Use the “johndoe” user (or whatever you named it) to login. To become root and be able to install software

If you rented a virtual server at your favorite hosting company then you already have a ready installation of Debian Stretch. If you have a chance to change the partitioning scheme then please create a seperate partition for /var/vmail as described below. Otherwise feel free to skip this page → Basic installation and partitioning Installing Debian

This is the pretty boring but at the same time very important part of the tutorial. Do not skip it. Most problems that readers have with their mail servers are caused by a misunderstanding of the different types of email domains. There is nothing you need to do on your server right now. Just lean back

The mail server that you are about to set up uses several software components. Let me first explain briefly what the purpose of each software is: Debian “Stretch” – the operating system Postfix receives incoming emails from the internet and forwards emails to other mail servers rspamd checks every incoming email for spam/malware and either rejects it or