Postscreen – Greylisting in Postfix
Greylisting is well known antispam technique. It’s idea is basing on fact, that spamming hosts (zombies) do not have time for re-transmission and are trying to send maximum amount of spam in shortest time...
DrFugazi@Work Blog
Mail system implementation
My experience, which I gained during implementation of different systems shows, that implementation should be done in stages. Then, at each stage you can see if it works, if there are some fields to...
Building mail system
This description is based on my experience, which I gained during mail system implementation on University of Silesia (Katowice/Poland). In the first stage there was about 3 000 of users, now the system is...
Postfix – compilation
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...
Pigeonhole – compilation and installation
You can download Pigeonhole for Dovecot from http://pigeonhole.dovecot.org/download.html
% wget http://www.rename-it.nl/dovecot/2.1/dovecot-2.1-pigeonhole-0.3.1.tar.gz
% tar -xf dovecot-2.1-pigeonhole-0.3.1.tar.gz
This is my script to configure and compile Pigeonhole 0.3.1 for Dovecot 2.1
Pigeonhole – Sieve support for Dovecot
Overview 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...
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...
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...
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....
OpenDJ – online schema modification
I wrote before about schema conversion to LDIF format and how to add schemas offline by uploading them to config/schema directory in OpenDJ. Now I will describe how to extend schema online, without restart...
