Postfix does not have a configure script, so you need to add proper paths and libraries when you creating Makefiles (make makefiles). I must admit, that Postfix code is one of the least problematic code to compile on differents systems. To make my compilations reproducible, I wrote a script and set proper options for compilation.
Mail system
Pigeonhole – compilation and installation
Pigeonhole – Sieve support for Dovecot
Pigeonhole is the name of the project that adds support for the Sieve language (RFC 5228) and the ManageSieve protocol (RFC 5804) to the Dovecot Secure IMAP Server. In the literal sense, a pigeonhole is a a hole or recess inside a dovecot for pigeons to nest in. It is, however, also the name for one of a series of small, open compartments in a cabinet used for filing or sorting mail. As a verb, it describes the act of putting an item into one of those pigeonholes. The name `Pigeonhole’ therefore well describes an important part of the functionality that this project adds to Dovecot: sorting and filing e-mail messages.
How to remove mail from Postfix queue
Sometimes you need to remove some mail from queue or do other things in shell. For experienced administrators this is not a problem, but I decided to write some usable shell commands and scripts for less experienced users.
Here are few commands to remove mail from Postfix queue. Don’t ask me why – just for example. This time i will describe it step by step. This is mail queue:
# mailq
-Queue ID- --Size-- ----Arrival Time---- -Sender/Recipient-------
571AAC45 48204 Tue Dec 21 07:52:39 MAILER-DAEMON
(connect to example.com[221.X.X.70]:25: Connection refused)
datadm@example.com
...
Postfix
Postfix is Wietse Venema’s mail server that started life at IBM research as an alternative to the widely-used Sendmail program. Postfix attempts to be fast, easy to administer, and secure. The outside has a definite Sendmail-ish flavor, but the inside is completely different. Built from source code, Postfix can run on UNIX-like systems including AIX, … Read more
Dovecot – compilation and installation
On Linux systems you can install Dovecot from packages. Appropriate packages supports also LDAP authentication, MySQL and so on. Unfortunatelly you probably would not find a newest versions, when you install in this manner. Eg. for today in Ubuntu packages you will find version 2.0.19-0ubuntu1, while on Dovecot page version 2.1.7 is available. For this reason it is worth to compile and install software by yourself, even it is available in package.
ClamAV
Clam AntiVirus is an open source (GPL) anti-virus toolkit for UNIX, designed especially for e-mail scanning on mail gateways. It provides a number of utilities including a flexible and scalable multi-threaded daemon, a command line scanner and advanced tool for automatic database updates. The core of the package is an anti-virus engine available in a form of shared library.
Dovecot
Dovecot is an open source IMAP and POP3 email server for Linux/UNIX-like systems, written with security primarily in mind. Dovecot is an excellent choice for both small and large installations. It’s fast, simple to set up, requires no special administration and it uses very little memory.
Mail delivery configuration with LDAP
Last time I wrote about users’ authentication in LDAP directory to allow them receiving and sending e-mails. Now is time to configure Postfix for mail delivery to appropriate mailboxes.
If you compile Postfix themselves, you need to remember to add support for LDAP. My description is based on Ubuntu, so I only need to install postfix-ldap package:
$ sudo -i # apt-get install postfix-ldap
This will add support for ldap: maps in Postfix.
Now we go to Postfix configuration:
# cd /etc/postfix # vi main.cf