Free qmail software for linux

qmail-spp adds plugin support to qmails SMTP daemon (qmail-smtpd). qmail-spp is written entirely in C using native qmail libraries, so it does not create any dependencies.
qmail-spp has been written because currently there is no common way of enhancing qmail-smtpds functionality apart of patches which usually are not compatible one with other and require recompilation.
In addition, qmail-spp gives you possibility of enhancing your mail server in any language, so you can easily integrate it with anything you want.
Plugins are external programs which are executed after processing SMTP command, but just before accepting it by qmail; this lets you to add extra checks on commands arguments before accepting it; for instance you can check envelope recipient address against your "black list".
Plugins can be written in any language, because they are independent programs. They:
- should not read anything from standard input,
- should not exit with error code 120,
- should print all errors to standard error (they are logged),
- can print commands on standard output.

qmailmrtg7 uses qmails excellent and extensive logging via multilog, tcpserver and qmail-send. qmailmrtg7 takes the pop3 smtp and qmail transaction logs and sends them to 9 different mrtg graphs, each graph with 4 historical time series.
Main features:
- very fast - typically processes in less than 2 seconds
- Intelligently uses the multilog file name time stamp to determine which logs to open and process.
- Single small C program with no external dependances and simple command line options. See the qmail.mrtg.cfg for working examples of the options.
- Works on any system that supports qmail

qmail-rblchk filter all incoming mail and check if it comes from RBL listed IPs.
It is for use in .qmail to check the IP address from the Received lines. qmail-rblchk has the same function as rblsmtpd, but the messages are checked at local delivery time.
Compile it with:
tar -xfz qmail-rblchk-[version].tar.gz
cd qmail-rblchk
make setup check
Edit conf-* files to set compile and install options. If you use FreeBSD you can install qmail-rblchk with his port:
cd /usr/ports/mail/qmail-rblchk
make install clean
Use
|qmail-rblchk [options] [/dir/]
qmail-rblchk is for use in .qmail to check the IP address from the Received: from lines. It has the same function as rblsmtpd, but the messages are checked at local delivery time, with this you can check the content of the message simply redirecting it to another mailbox or address.
If a directory is given with dir all spam message are delivered to that directory if it exist and is in Maildir format.
Directory name must start with a / or . (dot) and end with a /.
General options:
-h: show a sort program description;
-s: add "X-Spam" header into the incoming mail (work only with delivery in dir/);
-i NUM: ignore first NUM IPs found in the header;
-x IP: do not check IP, try to find other address in header (you can ignore max 16 IPs);
-m: check all IPs that find in mail header (default check only the first);
-v: debug mode, make output more verbose;
-p: dont check private IP classes:
127.0.0.0 - 127.255.255.255
10.0.0.0 - 10.255.255.255
172.16.0.0 - 172.31.255.255
192.168.0.0 - 192.168.255.255
-q: quiet mode;
-l LOG: redirect to file LOG program messages;
-L DATA: write blocked IP address tu file DATA (you can use the DATA file to build your RBL list, see example below);
-c: turn on the condredirect compatibility mode for exit code.
Control options
-r addr: request if a TXT record exist into addr;
-R addr: request if a TXT record not exist into addr;
-a addr: request if a A record not exist into addr;
-A addr: request if a A record exist into addr;
-C addr: request if a A or TXT record exist into addr, if true the mail is not SPAM and the program exit;
-X cdb: check if the sender IP is listed in cdb file, see tcprules or EXAMPLES section for the format
Its possible to use up to 32 control options to specify more RBL server; those are checked until the first of them answere true and the mail will be tagged as a "spam" (unless you use -C option).
If a mail come from a.b.c.d IP, the request that the program send to DNS server is: d.c.b.a.addr where addr is the parameter that come after -r, -R, -a or -A options.
Enhancements:
- This release adds many new features: CDB RBL checking, a better IP search method, better logging, and more.

mysqmail is a replacement for the qmail standard checkpasswd that performs authentication with a MySQL table.
After authentication, mysqmail sets up two environment variables that it uses to perform traffic accounting.
For SMTP, it provides an alternative logger for the qmail-send program. Instead of logs, it writes the traffic to a MySQL table for the related domain.
MySQmail helps keeping all the qmail MTA login and trafic informations in a database.
This tool was written mostly to work with Domain Technologie Control (DTC). MySQMail is not mandatory for DTC, but its a way better to have it.
I needed to have qmail accounting, so I had to write couples of binaries. Fortunatly qmail is modular and its realy easy to make some add-ons. Here is what MySQmail package will add to qmail: pop will use MySQL backend for password, and both
SMTP and POP will have trafic logged into MySQL by mailbox.
Enhancements:
- This version adds support for a new score board table that allows for real-time bandwidth recording in MySQL.

qmail-smtpd-auth is a patch for qmail that enables it to support SMTP AUTH protocol with the following auth types: LOGIN, PLAIN and CRAM-MD5. Its based on a previous patch by Mrs.Brisby that implemented LOGIN type. This version has some enhancements and allows easy adding of new auth methods.
If you want to learn more about SMTP AUTH itself, then visit my SMTP AUTH page.
This patch adds the ESMTP AUTH option to qmail-1.03, allowing the LOGIN, PLAIN, and CRAM-MD5 AUTH types. An appropriate checkpassword tool is necessary to support the authentication. See http://cr.yp.to/checkpwd.html for more information on the interface. Note that the checkpassword tool should support all of the AUTH types
advertised by qmail-smtpd.
As reflected in the modified qmail-smtpd(8) man page, qmail-smtpd must be invoked with three arguments: hostname, checkprogram, and subprogram. If these arguments are missing, qmail-smtpd will still advertise availability of AUTH, but will fail with a permanent error when AUTH is used.
hostname is simply used to form the CRAM-MD5 challenge. qmail-smtpd invokes checkprogram, feeding it the username and password, in the case of LOGIN or PLAIN, or the username, challenge, and response, in the case of CRAM-MD5. If the user is permitted, checkprogram invokes subprogram, which just has to exit with a status of 0 for the user to be authenticated. Otherwise, checkprogram exits with a non-zero
status. subprogram can usually be /usr/bin/true (or /bin/true, depending on your flavor of OS).
If the user is successfully authenticated, the RELAYCLIENT environment variable is effectively set for the SMTP session, and the TCPREMOTEINFO environment variable is set to the authenticated username, overriding any value that tcpserver may have set. The
value of TCPREMOTEINFO is reflected in a Received header.
Enhancements:
- bug: AUTH PLAIN 334 response not RFC compliant. Reported by Mark Crispin
- .
- change: Set TCPREMOTEINFO environment variable to authenticated username. (Previously only set locally to qmail-smtpd.)

QmailToaster project is an RPM-based Qmail distribution for CentOS, Fedora, SuSE, and Mandriva. This system is designed for ease of deployment and includes strong anti-spam systems. This includes support for SRS, SPF, DomainKeys, and virtual hosting on the SMTP side. On the user side, this has a Web-based administration interface and supports POP3, POP3 over SSL, IMAP, and IMAP over SSL
Main features:
- Source RPM packages ready for RPM based distributions
- SMTP with SMTP-AUTH, TLS, REMOTE-AUTH
- DomainKeys, SPF "Sender Policy Framework" and SRS "Sender Rewriting Scheme"
- Integrated SpamAssassin, ClamAV and Simscan
- Warlord virus and worm loader realtime scanning
- CHKUSER 2.0 functions for qmail-smtpd
- Qmail-Tap provides email archive capability
- Virtual Domains (MySQL), Virtual Users (MySQL)
- Autoresponder, Mailing List
- Web-based email system, Web-based administration tools
- POP3, POP3-SSL, IMAP and IMAP-SSL
Enhancements:
- CentOS 5.x support was added.

The Qmail virus scanner (QScan) is a mail filter for Qmail that scans incoming messages using the Sophos Antivirus engine, immediately rejecting infected content.

It is designed to be minimalistic, yet extremely fast and secure, and uses multiple pipes instead of the traditional temporary files and privilege separation. It works with non-native versions of the virus scanner like under OpenBSD with Linux or FreeBSD emulation.


You must create a temporary directory to extract MIME attachments, and replace Qmails original qmail-queue program with Qscan. Quick way to achieve this for the impatients :

mkdir /var/qmail/qscan
chmod 700 /var/qmail/qscan
chown qmaild:qmail /var/qmail/qscan
ln /var/qmail/bin/qmail-queue /var/qmail/bin/qmail-queue-old

Now, lets compile and install Qscan :

./configure --help

./configure [your beloved flags]

make install-strip

The last step is to replace the original qmail-queue program with our filter :

rm /var/qmail/bin/qmail-queue
ln -s /usr/local/sbin/qscan /var/qmail/bin/qmail-queue

Depending on your local configuration, it may be needed or not, but start with doing it :

chown qmaild:qmail /usr/local/sbin/qscan
chmod 6711 /usr/local/sbin/qscan

After testing, if everythings ok for you, remove the setuid bit :

chown 0:0 /usr/local/sbin/qscan
chmod 711 /usr/local/sbin/qscan

Mail::Toaster:::Qmail is a Perl module with common Qmail functions.

SYNOPSIS

Mail::Toaster::Qmail is a module of Mail::Toaster. It contains features for use with qmail, like starting and stopping the deamons, installing qmail, checking the contents of config files, etc.

This module has all sorts of goodies, the most useful of which are the build_????_run modules which build your qmail control files for you.