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PUBLIC MARKS from camel with tag qmail

June 2008

SMTP Performance Benchmarking

To test and benchmark several common SMTP servers for Unix. This is inspired by the work done by Matthias Andree at his Postfix vs. qmail - Performance page. His information, while likely still highly relevant is based heavily around file system I/O and not overall performance of the MTA. Additionally, more MTAs and OSs will eventually be tested here.

April 2008

This document explains how to install Qmail with the following features: - Greylisting - Adaptive blacklist - SpamAssassin - Simscan - Recipient filtering - Virus scanning (ClamAV) - Administration tool for configuring whitelists, blacklists, relay control, etc...

Qmail-Scanner - A Content Scanner for Qmail

by 2 others
Qmail-Scanner is an add-on that enables a Qmail email server to scan gatewayed email for certain characteristics (i.e. a content scanner). It is typically used for its anti-virus and anti-spam protection functions, in which case it is used in conjunction with external scanners. It also enables a site (at a server/site level) to create "Policy blocks": i.e. react to email that contains specific strings in particular headers, or particular attachment filenames or types (e.g. *.VBS attachments).

Qmail/Postfix/ClamAV Dual MTA HOWTO

Here is a quick guide to implementing virus protection on an existing Qmail server by adding Postfix, ClamAV and amavisd-new. Readers may ask themselves why anyone would want to do this. There is an actual reason why this particular set up came about.

March 2008

qpsmtpd - Develooper LLC

by 2 others
qpsmtpd is a flexible smtpd daemon written in Perl. Apart from the core SMTP features, all functionality is implemented in small "extension plugins" using the easy to use object oriented plugin API. qpsmtpd was originally written as a drop-in qmail-smtpd replacement, but now it also includes smtp forward, postfix, exim and maildir "backends".

QMVC - Qmail Mail and Virus Control

is an unidirectional Mail Filter and Virus Scanner for Qmail. qmvc works in conjunction with the "dot-qmail" mechanism for qmail-local. It is entirely designed for Qmail and there are no additional patches required for Qmail.

BSDspot » Getting Awstats to Work with Qmail

To get awstats to work with qmail log files I use this little script from Bob Hutchinson called qlogs4awstats. - Opensource/qmail/qmail-remove/qmail-remove

The Qmail-Remove utility will remove messages containing a particular string from your Qmail queue.

Pape - Debian Packages

You find precompiled binary Debian packages for setting up qmail and djbdns on Debian GNU/Linux here. See a list of available packages below. These packages are not in the official Debian archive, read about the reasons why. * qmail-run * var-qmail * djbdns * djbdns-doc * daemontools * daemontools-run * daemontools-doc * ucspi-tcp * ucspi-tcp-doc

Greylisting anti spam solution for Qmail -

Greylisting is an interesting method to fight against spam. It's based on the fact most spam is not sent out by fully compliant MTA's. How it works and how this can be implemented into Qmail? Running QMail SMTP on a 2nd port

Due to the increase in the number of ISP's blocking port 25 for third party mailservers I decided to setup my mailserver to answer SMTP request on multiple ports. While this can be accomplished in many ways, such as port forwarding or multiple instances of qmail-smtpd, my situation required setting up a second instance or qmail-smtpd.

February 2008

Spam Links - spam filter server addons

Filtering add-ons to specific mail server applications and instructions on how to filter spam with specific servers. Remember that spam filters are also available that work with any mail server on a particular operating system, and that some spam filters can be found that function on any operating system, with any mail server.

January 2008

Interazioni: Chkuser 2.0 - running qmail-smtpd

qmail-smtpd executes as a qmail dedicated user, communicating on the external SMTP side using a socket connection, and talking to the internal processing section using a pipe. This architecture is very secure, as qmail-smtpd is allowed to read/write only what it owns (practically nothing), and, the eventual break of qmail-smtpd by a cracker would have a minimal impact on the safety of the system.