Announcing mailfront version 1.15

Version 1.15 of mailfront is now available at:
	http://untroubled.org/mailfront/
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Changes in version 1.15

- Added a SpamAssassin scanning plugin.

- Optimized pop3front-maildir to avoid stat'ing each message twice, and
  to use sizes recorded in the filename to avoid stat'ing entirely.
  See pop3front.html for details on the filenames.

Development of this version has been sponsored by FutureQuest, Inc.
[email protected]  http://www.FutureQuest.net/
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mailfront
Mail server network protocol front-ends
Bruce Guenter <[email protected]>
Version 1.15
2010-03-31

This is mailfront, a package containing customizeable network front-ends
for mail servers.  It contains complete SMTP, QMQP, QMTP, and POP3
front-ends as well as an authentication module for IMAP.  The mail
delivery front-ends also contain internal address filtering features.

Two SMTP back-ends are provided.  One delivers mail to qmail-queue,
mimicking most of the behavior of qmail-smtpd, with the addition of
support for SMTP AUTH.  The other rejects all SMTP commands if
$SMTPREJECT is set, and execs its command line otherwise (in order to
run the above program).

A mailing list has been set up to discuss this and other packages.
To subscribe, send an email to:
	[email protected]
A mailing list archive is available at:
	http://lists.untroubled.org/?list=bgware

Development versions of mailfront are available via git at:
	http://bruce-guenter.dyndns.org/git/mailfront.git

Requirements:

- bglibs version 1.101
- cvm version 0.81

Installation:

- Build the sources by running "make".
- After the package has been compiled, run "make install" as root.

Configuration:

- To take advantage of the SMTP AUTH features, make sure you have a CVM
  authentication program (some are included with the cvm package itself).
- Run a CVM authentication module to provide the AUTH feature.
  Example:  To run cvm-vmailmgr as a daemon:
    exec /usr/local/bin/softlimit -m 9000000 \
     /usr/local/bin/cvm-vmailmgr /tmp/.cvm-vmailmgr 2>&1
- Configure your mail system to use the SMTP back-end with the
  appropriate environment variables.

  Example using tcpserver (highly recommended):
    #!/bin/sh
    QMAILDUID=`id -u qmaild`
    NOFILESGID=`id -g qmaild`
    MAXSMTPD=`head -1 /var/qmail/control/concurrencyincoming`
    if [ -z "$QMAILDUID" -o -z "$NOFILESGID" -o -z "$MAXSMTPD" ]; then
        echo $0: QMAILDUID, NOFILESGID, or MAXSMTPD is unset
        exit 1
    fi
    exec \
    /usr/local/bin/envdir /etc/smtpfront \
    /usr/local/bin/softlimit -m 2000000 \
    /usr/local/bin/tcpserver -v -R -H \
      -l "`head -1 /var/qmail/control/me`" -x /etc/tcp.smtp.cdb \
      -c "$MAXSMTPD" -u "$QMAILDUID" -g "$NOFILESGID" 0 25 \
    /usr/local/bin/smtpfront-qmail 2>&1

  /etc/smtpfront/CVM_SASL_PLAIN:
    cvm-local:/tmp/.cvm-vmailmgr

  Example using xinetd with TCP Wrappers:

  /etc/xinetd.d/smtp:
    # default: on
    # description: smtp
    service smtp
    {
    	disable	= no
    	flags		= REUSE NAMEINARGS
    	socket_type	= stream        
    	protocol	= tcp
    	wait		= no
    	user		= qmaild
    	server		= /usr/sbin/tcpd
    	server_args 	= /var/qmail/bin/tcp-env -R /usr/local/sbin/smtpfront-wrapper
    	log_on_success          += USERID
    	log_on_failure          += USERID
    }

  /usr/local/sbin/smtpfront-wrapper:
    #!/bin/sh
    CVM_SASL_PLAIN=cvm-local:/tmp/.cvm-unix
    export CVM_SASL_PLAIN
    CVM_SASL_LOGIN=cvm-local:/tmp/.cvm-unix
    export CVM_SASL_LOGIN
    exec /usr/local/bin/smtpfront-qmail 2>> /tmp/smtpfront-errs.txt


This project was initiated at FutureQuest, Inc.  We are releasing it
as an open-source project because we felt it would be useful to others,
as well as to repay our debt of gratitude to the larger open-source
community for the excellent packages we have enjoyed.

For more details, you may contact FutureQuest, Inc. at:
FutureQuest, Inc.
PO BOX 623127
Oviedo FL 32762-3127 USA
http://www.FutureQuest.net/
[email protected]

This package is Copyright(C) 2010 Bruce Guenter or FutureQuest, Inc.,
and may be copied according to the GNU GENERAL PUBLIC LICENSE (GPL)
Version 2 or a later version.  A copy of this license is included with
this package.  This package comes with no warranty of any kind.

-- 
Bruce Guenter <[email protected]>                http://untroubled.org/

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