What is is: [excerpt from the patch homepage]
A few people have done qmail - MySQL integration and this is my
crack at it. My work is based on takeshi@softagency.co.jp's patches,
which you can find at http://www.softagency.co.jp/mysql/qmail.en.html.
However I wanted to tidy up some of the code to make it use strallocs
and do more error checking. I also wanted to simplify the configuration,
whilst at the same time allowing more flexibility. Plus there were
some things I just didn't want: quotas and APOP support for example...
This program allows the body of a message to be filtered through
a series of filters before being passed to the real qmail-queue program,
and injected into the qmail queue.
Qmail-Remove will remove messages containing a particular string from your
Qmail queue.
SpamControl is a collection of patches for qmail developed and maintained
by Erwin Hoffmann (feh@fehcom.de).
Some SpamControl features: smtp-auth (plain, login and cram-md5),
requirement of brackets on addresses, qmail-queue, bigtodo, moreipme,
recipients, STARTTLS...
What is is: [excerpt taken from tls patch]
Frederik Vermeulen <qmail-tls at inoa.net> 20021228
http://inoa.net/qmail/qmail-1.03-tls.patch
This patch implements RFC2487 in qmail. This means you can
get SSL or TLS encrypted and authenticated SMTP between
the MTAs and between MTA and an MUA like Netscape4.5 TM.
The code is considered experimental.
QmailAdmin is a cgi program for administering Qmail with vchkpw.
qmailmrtg7 utilizes qmail and tcpserver/multilog's
extensive logging capabilities to create mrtg graphs.
It efficiently processes the logs (large sites with
historical logs of over 100MB can be processed in a few seconds).
For qmail it graphs remote/local delivery concurrency,
queue size, messages process, bytes transferred,
and success/failure delivery status.
For POP and SMTP it graphs total connections and concurrency.
qmHandle is a simple program which allows you to view and manage a qmail
message queue.
The key features of qmHandle are:
* You can read the qmail queue, like you do with the qmail-qread program.
However, the output of this program is improved over qmail-qread, with
the output of the message subjects and color capabilities;
* You can print queue statistics, like qmail-qstat, with color capabilities;
* You can view a message in the queue;
* You can remove a message from the queue.
The qtools package comprises several utilities for use with qmail,
typically as part of .qmail command processing.
Included are tools to extract the message body, extract all or
parts of the header, check an address list for a matching address
or domain, message filtering and forwarding, write to a maildir,
and automatically reply to certain messages.
This is the Distributed Checksum Clearinghouse (DCC) package, including
the command line (e.g. procmail) interface, dccproc; the SpamAssassin
and Postfix interface, dccifd; the Sendmail milter interface, dccm;
the DCC server, dccd; and the DCC greylisting server, dccd-grey.
Also included are utilities such as cdcc and all of the manual pages
and documentation.