Update on installing qpsmtpd

This is an update to my original instructions for installing qpsmtpd on a Linux system running under Plesk.

Just in case you don't have cc yet:

apt-get install build-essential

qpsmtpd is now on GitHub

qpsmtpd's README mentions installing the following "required Perl modules"

perl -MCPAN -e 'install Net::DNS'
perl -MCPAN -e 'install MIME::Base64'

Chinese Spam

For a while now I've been getting a Chinese piece of spam every day, supposedly sent by people like 魏碈, which is encoded as

From: =?utf-8?B?6a2P56KI?=

These pages have helped make sense of this:
BASE64 Decode and Encode
Wikipedia: Base64
UTF-8 encoding table and Unicode characters
RFC 2044 (UTF-8)

Implementing SMTP Authorization with qpsmtpd running under SuSE 10.0 and Plesk 8.0

Receiving incoming email and making it available to your users via POP3 or IMAP is only the first half of running a Message Transfer Agent (MTA). The other half is to relay outgoing email from your users to the world.

We don't want to run an open relay, of course, so we we need some form of authorization.

Installing qpsmtpd on SuSE 10.0 with Plesk 8.0

[14-01: Here's an update to these instructions.
[08-11: New installation on 10.3/8.6.0]

The qpsmtpd daemon started as a replacement daemon for the qmail-smtpd SMTP receiver from the qmail mail transport agent (MTA), but it can also be used with other MTAs. qpsmtpd is written in pure Perl and can be customized easily. It consists of a core that implements a complete SMTP server, and a number of plug-ins that enhance the operations of the server. These plug-ins allow for the checking of recipients and senders, as well as virus scanning, spam checking, blocking lists (DNS and RHS), SMTP AUTH and TLS. If you like to tweak, you can adapt qpsmtpd to almost any environment and task.

In this article I collect information that I've gathered from various sources and customized for installing qpsmtpd on Suse and Plesk.

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