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Readme.html
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<?xml version="1.0" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>XMail mail server v 1.26</title>
<link rel="stylesheet" href="./xmail.css" type="text/css" />
<meta http-equiv="content-type" content="text/html; charset=utf-8" />
<link rev="made" href="mailto:root@localhost" />
</head>
<body>
<!-- INDEX BEGIN -->
<div name="index">
<p><a name="__index__"></a></p>
<ul>
<li><a href="#name">NAME</a></li>
<li><a href="#license">LICENSE</a></li>
<li><a href="#overview">OVERVIEW</a></li>
<li><a href="#version">VERSION</a></li>
<ul>
<li><a href="#current">current</a></li>
<li><a href="#release_type">release type</a></li>
<li><a href="#release_date">release date</a></li>
<li><a href="#project_by">project by</a></li>
<li><a href="#credits">credits</a></li>
<li><a href="#warning">warning</a></li>
</ul>
<li><a href="#documentation_conventions">DOCUMENTATION CONVENTIONS</a></li>
<li><a href="#features">FEATURES</a></li>
<li><a href="#porting_status">PORTING STATUS</a></li>
<li><a href="#requirements">REQUIREMENTS</a></li>
<li><a href="#obtaining_the_source">OBTAINING THE SOURCE</a></li>
<li><a href="#build">BUILD</a></li>
<li><a href="#configuration">CONFIGURATION</a></li>
<ul>
<li><a href="#linux_solaris_freebsd_openbsd">Linux/Solaris/FreeBSD/OpenBSD</a></li>
<li><a href="#nt_win2k_xp">NT/Win2K/XP</a></li>
<li><a href="#environment_variables">Environment variables</a></li>
<li><a href="#mailroot_structure">MailRoot structure</a></li>
<li><a href="#configuration_tables">Configuration tables</a></li>
<ul>
<li><a href="#aliases_tab">ALIASES.TAB</a></li>
<li><a href="#aliasdomain_tab">ALIASDOMAIN.TAB</a></li>
<li><a href="#domains_tab">DOMAINS.TAB</a></li>
<li><a href="#dnsroots">DNSROOTS</a></li>
<li><a href="#extaliases_tab">EXTALIASES.TAB</a></li>
<li><a href="#mailusers_tab">MAILUSERS.TAB</a></li>
<li><a href="#message_id">MESSAGE.ID</a></li>
<li><a href="#pop3links_tab">POP3LINKS.TAB</a></li>
<li><a href="#server_tab">SERVER.TAB</a></li>
<li><a href="#smtpgw_tab">SMTPGW.TAB</a></li>
<li><a href="#smtpfwd_tab">SMTPFWD.TAB</a></li>
<li><a href="#smtprelay_tab">SMTPRELAY.TAB</a></li>
<li><a href="#smtpauth_tab">SMTPAUTH.TAB</a></li>
<li><a href="#smtpextauth_tab">SMTPEXTAUTH.TAB</a></li>
<li><a href="#userdef_tab">USERDEF.TAB</a></li>
<li><a href="#ctrlaccounts_tab">CTRLACCOUNTS.TAB</a></li>
<li><a href="#spammers_tab">SPAMMERS.TAB</a></li>
<li><a href="#spam_address_tab">SPAM-ADDRESS.TAB</a></li>
<li><a href="#pop3_ipmap_tab">POP3.IPMAP.TAB</a></li>
<li><a href="#smtp_ipmap_tab">SMTP.IPMAP.TAB</a></li>
<li><a href="#ctrl_ipmap_tab">CTRL.IPMAP.TAB</a></li>
<li><a href="#finger_ipmap_tab">FINGER.IPMAP.TAB</a></li>
<li><a href="#user_tab">USER.TAB</a></li>
<li><a href="#mlusers_tab">MLUSERS.TAB</a></li>
<li><a href="#mailproc_tab">MAILPROC.TAB</a></li>
<li><a href="#smtp_ipprop_tab">SMTP.IPPROP.TAB</a></li>
<li><a href="#smtp_hnprop_tab">SMTP.HNPROP.TAB</a></li>
<li><a href="#filters_in_tab">FILTERS.IN.TAB</a></li>
<li><a href="#filters_out_tab">FILTERS.OUT.TAB</a></li>
<li><a href="#filters_post_rcpt_tab">FILTERS.POST-RCPT.TAB</a></li>
<li><a href="#filters_pre_data_tab">FILTERS.PRE-DATA.TAB</a></li>
<li><a href="#filters_post_data_tab">FILTERS.POST-DATA.TAB</a></li>
</ul>
</ul>
<li><a href="#macro_substitution">MACRO SUBSTITUTION</a></li>
<li><a href="#external_authentication">EXTERNAL AUTHENTICATION</a></li>
<li><a href="#smtp_client_authentication">SMTP CLIENT AUTHENTICATION</a></li>
<li><a href="#custom_domain_mail_processing">CUSTOM DOMAIN MAIL PROCESSING</a></li>
<li><a href="#cmd_aliases">CMD ALIASES</a></li>
<li><a href="#server_tab_variables">SERVER.TAB VARIABLES</a></li>
<li><a href="#message_filters">MESSAGE FILTERS</a></li>
<li><a href="#smtp_message_filters">SMTP MESSAGE FILTERS</a></li>
<li><a href="#user_tab_variables">USER.TAB VARIABLES</a></li>
<li><a href="#mail_routing_through_addresses">MAIL ROUTING THROUGH ADDRESSES</a></li>
<li><a href="#xmail_spool_design">XMAIL SPOOL DESIGN</a></li>
<li><a href="#smtp_gateway_configuration">SMTP GATEWAY CONFIGURATION</a></li>
<li><a href="#ssl_configuration">SSL CONFIGURATION</a></li>
<li><a href="#smtp_commands">SMTP COMMANDS</a></li>
<li><a href="#pop3_commands">POP3 COMMANDS</a></li>
<li><a href="#command_line">COMMAND LINE</a></li>
<li><a href="#xmail_admin_protocol">XMAIL ADMIN PROTOCOL</a></li>
<ul>
<li><a href="#description">Description</a></li>
<li><a href="#adding_a_user">Adding a user</a></li>
<li><a href="#deleting_a_user">Deleting a user</a></li>
<li><a href="#changing_a_user_s_password">Changing a user's password</a></li>
<li><a href="#authenticate_user">Authenticate user</a></li>
<li><a href="#retrieve_user_statistics">Retrieve user statistics</a></li>
<li><a href="#adding_an_alias">Adding an alias</a></li>
<li><a href="#deleting_an_alias">Deleting an alias</a></li>
<li><a href="#listing_aliases">Listing aliases</a></li>
<li><a href="#adding_an_external_alias">Adding an external alias</a></li>
<li><a href="#deleting_an_external_alias">Deleting an external alias</a></li>
<li><a href="#listing_external_aliases">Listing external aliases</a></li>
<li><a href="#listing_user_vars">Listing user vars</a></li>
<li><a href="#setting_user_vars">Setting user vars</a></li>
<li><a href="#listing_users">Listing users</a></li>
<li><a href="#getting_mailproc_tab_file">Getting mailproc.tab file</a></li>
<li><a href="#setting_mailproc_tab_file">Setting mailproc.tab file</a></li>
<li><a href="#adding_a_mailing_list_user">Adding a mailing list user</a></li>
<li><a href="#deleting_a_mailing_list_user">Deleting a mailing list user</a></li>
<li><a href="#listing_mailing_list_users">Listing mailing list users</a></li>
<li><a href="#adding_a_domain">Adding a domain</a></li>
<li><a href="#deleting_a_domain">Deleting a domain</a></li>
<li><a href="#listing_handled_domains">Listing handled domains</a></li>
<li><a href="#adding_a_domain_alias">Adding a domain alias</a></li>
<li><a href="#deleting_a_domain_alias">Deleting a domain alias</a></li>
<li><a href="#listing_alias_domains">Listing alias domains</a></li>
<li><a href="#getting_custom_domain_file">Getting custom domain file</a></li>
<li><a href="#setting_custom_domain_file">Setting custom domain file</a></li>
<li><a href="#listing_custom_domains">Listing custom domains</a></li>
<li><a href="#adding_a_pop3_external_link">Adding a POP3 external link</a></li>
<li><a href="#deleting_a_pop3_external_link">Deleting a POP3 external link</a></li>
<li><a href="#listing_pop3_external_links">Listing POP3 external links</a></li>
<li><a href="#enabling_a_pop3_external_link">Enabling a POP3 external link</a></li>
<li><a href="#listing_files">Listing files</a></li>
<li><a href="#getting_configuration_file">Getting configuration file</a></li>
<li><a href="#setting_configuration_file">Setting configuration file</a></li>
<li><a href="#listing_frozen_messages">Listing frozen messages</a></li>
<li><a href="#rescheduling_frozen_message">Rescheduling frozen message</a></li>
<li><a href="#deleting_frozen_message">Deleting frozen message</a></li>
<li><a href="#getting_frozen_message_log_file">Getting frozen message log file</a></li>
<li><a href="#getting_frozen_message">Getting frozen message</a></li>
<li><a href="#starting_a_queue_flush">Starting a queue flush</a></li>
<li><a href="#do_nothing_command">Do nothing command</a></li>
<li><a href="#quit_the_connection">Quit the connection</a></li>
<li><a href="#do_you_want___">Do you want...?</a></li>
</ul>
<li><a href="#xmail_local_mailer">XMAIL LOCAL MAILER</a></li>
<li><a href="#ctrlclnt__xmail_administration_">CtrlClnt (XMAIL ADMINISTRATION)</a></li>
<li><a href="#server_shutdown">SERVER SHUTDOWN</a></li>
<li><a href="#mkusers">MkUsers</a></li>
<li><a href="#sendmail">sendmail</a></li>
<li><a href="#miscellaneous">MISCELLANEOUS</a></li>
<li><a href="#thanks">THANKS</a></li>
</ul>
<hr name="index" />
</div>
<!-- INDEX END -->
<p>
</p>
<h1><a name="name">NAME</a></h1>
<p>XMail - Internet/Intranet mail server.</p>
<p>[<a href="#__index__">top</a>]</p>
<p>
</p>
<hr />
<h1><a name="license">LICENSE</a></h1>
<p>This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation (<a href="http://www.gnu.org">http://www.gnu.org</a>);
either version 2 of the License, or
(at your option) any later version.</p>
<p>This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.</p>
<p>You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</p>
<p>[<a href="#__index__">top</a>]</p>
<p>
</p>
<hr />
<h1><a name="overview">OVERVIEW</a></h1>
<p>XMail is an Internet and Intranet mail server featuring an SMTP server,
POP3 server, finger server, multiple domains,
no need for users to have a real system account,
SMTP relay checking, RBL/RSS/ORBS/DUL and custom (IP based and address based) spam protection,
SMTP authentication (PLAIN LOGIN CRAM-MD5 POP3-before-SMTP and custom),
a POP3 account synchronizer with external POP3 accounts, account aliases,
domain aliases, custom mail processing, direct mail files delivery,
custom mail filters, mailing lists, remote administration, custom mail exchangers,
logging, and multi-platform code.</p>
<p>XMail sources compile under GNU/Linux, FreeBSD, OpenBSD, NetBSD, OSX, Solaris and NT/2K.</p>
<p>This server was born due to the need of having a free and stable Mail Server
to be used inside my old company, which used a Windows Network.
I don't like to reinvent the wheel but the need of some special features
drive me to start a new project. Probably if I could use a Linux server
on my net, I would be able to satisfy my needs without writing code, but
this is not the case. It should be also portable to other OSs, like Linux
and other Unixes.</p>
<p>Another reason that drove me to write XMail is the presence of the same steps
in setting up a typical mail server, i.e.:</p>
<pre>
sendmail + qpopper + fetchmail</pre>
<p>if one needs SMTP, POP3 and external synchronization, or:</p>
<pre>
sendmail + qpopper</pre>
<p>for only SMTP and POP3 (I've quoted sendmail, qpopper and fetchmail, but there
are many other packages you can use to reach these needs).
With XMail you get an all-in-one package with a central administration that can
simplify the above common steps.</p>
<p>The first code of XMail Server is started on Windows NT and Linux, and
now, the FreeBSD and Solaris version ready. The compilers supported are gcc for
Linux, FreeBSD, OpenBSD and Solaris and M$ Visual C++ for NT/2K.</p>
<p>[<a href="#__index__">top</a>]</p>
<p>
</p>
<hr />
<h1><a name="version">VERSION</a></h1>
<p>
</p>
<h2><a name="current">current</a></h2>
<p>1.26</p>
<p>
</p>
<h2><a name="release_type">release type</a></h2>
<p>Gnu Public License <a href="http://www.gnu.org">http://www.gnu.org</a></p>
<p>
</p>
<h2><a name="release_date">release date</a></h2>
<p>Jan 4, 2008</p>
<p>
</p>
<h2><a name="project_by">project by</a></h2>
<p>Davide Libenzi <<a href="mailto:[email protected]">[email protected]</a>> <a href="http://www.xmailserver.org/">http://www.xmailserver.org/</a></p>
<p>
</p>
<h2><a name="credits">credits</a></h2>
<p>Michael Hartle <<a href="mailto:[email protected]">[email protected]</a>></p>
<p>Shawn Anderson <<a href="mailto:[email protected]">[email protected]</a>></p>
<p>Dick van der Kaaden <<a href="mailto:[email protected]">[email protected]</a>></p>
<p>Beau E, Cox <<a href="mailto:[email protected]">[email protected]</a>></p>
<p>
</p>
<h2><a name="warning">warning</a></h2>
<pre>
************************************************************
* <<WARNING>> *
* If you're upgrading an existing version of XMail it's *
* strongly suggested that you read all the ChangeLog *
* notes that range from existing version to the new one. *
************************************************************</pre>
<p>See the <a href="./ChangeLog.html"><b>Change Log</b></a>.</p><p>[<a href="#__index__">top</a>]</p>
<p>
</p>
<hr />
<h1><a name="documentation_conventions">DOCUMENTATION CONVENTIONS</a></h1>
<p>This document contains various examples of entries you must make to the XMail
configuration tables. These examples are written in a</p>
<pre>
mono-spaced font like this.</pre>
<p>The prototype statement is shown with explicit '<strong>[TAB]</strong>' and '<strong>[NEWLINE]</strong>'
characters:</p>
<pre>
"aliasdomain"[TAB]"realdomain"[NEWLINE]</pre>
<p>while examples omit these characters:</p>
<pre>
"simpson.org" "simpson.com"
"*.homer.net" "homer.net"</pre>
<p>'<strong>YOU MUST ALWAYS ENTER THE DATA EXACTLY AS SHOWN IN THE PROTOTYPE.</strong>'</p>
<p>When a prototype or example statement is too long to be easily shown on the screen or
printed, the line is split into multiple lines by showing '<strong>=</strong>>' at the end of
continued lines and indenting the continuation line(s):</p>
<pre>
"domain"[TAB]"account"[TAB]"enc-passwd"[TAB]"account-id"[TAB]"account-dir"[TAB]=>
"account-type"[NEWLINE]</pre>
<p>'<strong>DO NOT ENTER THE => CHARACTERS. ENTER THE ENTIRE ENTRY AS ONE LINE.</strong>'</p>
<p>[<a href="#__index__">top</a>]</p>
<p>
</p>
<hr />
<h1><a name="features">FEATURES</a></h1>
<ul>
<li>
<p>ESMTP/ESMTPS server</p>
</li>
<li>
<p>POP3/POP3S server</p>
</li>
<li>
<p>Finger server</p>
</li>
<li>
<p>Multiple domains</p>
</li>
<li>
<p>Users don't need a real system account</p>
</li>
<li>
<p>SMTP relay checking</p>
</li>
<li>
<p>Custom SMTP maps check</p>
</li>
<li>
<p>SMTP protection over spammers (IP based and address based)</p>
</li>
<li>
<p>SMTP authentication (PLAIN LOGIN CRAM-MD5 POP3/SMTP and custom)</p>
</li>
<li>
<p>SMTP ETRN command support</p>
</li>
<li>
<p>POP3 account synchronizer with external POP3 accounts</p>
</li>
<li>
<p>Account aliasing</p>
</li>
<li>
<p>Domain aliasing</p>
</li>
<li>
<p>Mailing lists</p>
</li>
<li>
<p>Custom mail processing</p>
</li>
<li>
<p>Locally generated mail files delivery</p>
</li>
<li>
<p>Remote administration</p>
</li>
<li>
<p>Custom mail exchangers</p>
</li>
<li>
<p>Logging</p>
</li>
<li>
<p>Multi platform (any Windows and almost any Unix OSs)</p>
</li>
<li>
<p>Fine grained message filters</p>
</li>
<li>
<p>Custom (external) POP3/SMTP authentication</p>
</li>
<li>
<p>TLS support for SMTP and POP3, both server and client side</p>
</li>
</ul>
<p>[<a href="#__index__">top</a>]</p>
<p>
</p>
<hr />
<h1><a name="porting_status">PORTING STATUS</a></h1>
<p>Right now the Linux and NT ports are stable, while the Solaris, FreeBSD, OpenBSD and OSX
ones have not been tested as well as the previous OSs.</p>
<p>[<a href="#__index__">top</a>]</p>
<p>
</p>
<hr />
<h1><a name="requirements">REQUIREMENTS</a></h1>
<ul>
<li>
<p>Any version of Linux that has glibc.</p>
</li>
<li>
<p>Windows NT with ws2_32.dll correctly installed.</p>
</li>
<li>
<p>A working DNS and gateway to the Internet (if you plan to use it).</p>
</li>
<li>
<p>To build from source for Linux you need any version of gcc and glibc installed.</p>
</li>
<li>
<p>To build from source for Windows you need MS Visual C++ (makefile included).</p>
</li>
<li>
<p>-or- any other working compiler that provides support for the Win32 SDK.</p>
</li>
</ul>
<p>[<a href="#__index__">top</a>]</p>
<p>
</p>
<hr />
<h1><a name="obtaining_the_source">OBTAINING THE SOURCE</a></h1>
<p>Always get the latest sources at the XMail home page <a href="http://www.xmailserver.org/">http://www.xmailserver.org/</a>
because otherwise you may be using an old version.</p>
<p>Use the correct distribution for your system and don't mix Unix files with
Windows ones because this is one of the most common cause of XMail bad behavior.</p>
<p>When you unzip (or untar) the package you've to check that the MailRoot
directory contained inside the package itself is complete (look at the directory tree
listed below) because some unzippers don't restore empty directories.</p>
<p>[<a href="#__index__">top</a>]</p>
<p>
</p>
<hr />
<h1><a name="build">BUILD</a></h1>
<p>XMail depends on OpenSSL to provide SSL support, so the development package of OpenSSL
(in Debian called libssl-dev) must be installed on your system. For Windows, the XMail
source already contains a pre-built version of the OpenSSL libraries, include files, and
executable. The OpenSSL web site can be found here <a href="http://www.openssl.org">http://www.openssl.org</a>.</p>
<p>[Windows]</p>
<pre>
You have to have the command line environment setup before (usually the vcvars32.bat
script inside the Visual C++ directory). You also need to copy the openSSL DLLs
(located in "win32ssl\dll") inside the same folder where the XMail.exe binary resides.</pre>
<pre>
C:> nmake /f Makefile.win
If once you run the XMail binaries, Windows complains about missing DLLs, your system
is probably missing the Microsoft CRT redistributable package, that you can download
here L<<a href="http://www.xmailserver.org/vcredist_x86.exe>">http://www.xmailserver.org/vcredist_x86.exe></a>;.</pre>
<p>[Linux]</p>
<pre>
# make -f Makefile.lnx</pre>
<p>[FreeBSD]</p>
<pre>
# setenv OSTYPE FreeBSD
# gmake -f Makefile.bsd</pre>
<p>or (depending on the shell):</p>
<pre>
# OSTYPE=FreeBSD gmake -f Makefile.bsd</pre>
<p>[OpenBSD]</p>
<pre>
# setenv OSTYPE OpenBSD
# gmake -f Makefile.bsd</pre>
<p>or (depending on the shell):</p>
<pre>
# OSTYPE=OpenBSD gmake -f Makefile.bsd</pre>
<p>[NetBSD]</p>
<pre>
# setenv OSTYPE NetBSD
# gmake -f Makefile.bsd</pre>
<p>or (depending on the shell):</p>
<pre>
# OSTYPE=NetBSD gmake -f Makefile.bsd</pre>
<p>[OSX]</p>
<pre>
# OSTYPE=Darwin make -f Makefile.bsd</pre>
<p>or (depending on the shell):</p>
<pre>
# setenv OSTYPE Darwin
# make -f Makefile.bsd</pre>
<p>[Solaris]</p>
<pre>
# make -f Makefile.sso</pre>
<p>Under Linux an init.d startup script is supplied (xmail) to allow you to run
XMail as a standard rc? daemon. You must put it into /etc/init.d (it depends on which
distro you're using) directory and then create K??xmail - S??xmail links into the
proper directories.</p>
<p>Under Windows NT/2000/XP the XMail's executable is a Win32 service by default and if
you want to have it built like a standard executable you've to comment the statement:</p>
<pre>
"#define SERVICE" in MainWin.cpp</pre>
<p>When it's built as a service (default) you can run:</p>
<pre>
XMail --install</pre>
<p>to install XMail as a manual startup service or:</p>
<pre>
XMail --install-auto</pre>
<p>to install XMail as an automatic startup service.</p>
<p>If you run '<strong>--install</strong>' and you want XMail to run at NT boot, you must go in
ControlPanel->Services and edit the startup options of XMail.
Once you have the service version of XMail you can run it in a 'normal' way by
executing:</p>
<pre>
XMail --debug [options]</pre>
<p>[<a href="#__index__">top</a>]</p>
<p>
</p>
<hr />
<h1><a name="configuration">CONFIGURATION</a></h1>
<p>
</p>
<h2><a name="linux_solaris_freebsd_openbsd">Linux/Solaris/FreeBSD/OpenBSD</a></h2>
<ol>
<li>
<p>Build XMail.</p>
</li>
<li>
<p>Log as root.</p>
</li>
<li>
<p>Copy the supplied MailRoot directory where you want it to reside (normally /var).</p>
</li>
<li>
<p>Do a
# chmod 700 /var/MailRoot
to setup MailRoot directory access rights.</p>
</li>
<li>
<p>Strip XMail executables if you want to reduce their sizes (strip filename).</p>
</li>
<li>
<p>Copy XMail executables to /var/MailRoot/bin.</p>
</li>
<li>
<p>If you have '<strong>inetd</strong>' installed, comment out the lines of '<strong>/etc/inetd.conf</strong>'
that involve SMTP, POP3, and Finger. Restart '<strong>inetd</strong>' (kill -HUP ...).</p>
</li>
<li>
<p>Since XMail uses syslog to log messages, enable syslogd if it's not running.</p>
</li>
<li>
<p>Setup the '<strong>SERVER.TAB</strong>' configuration file (after reading the rest of this
document well).</p>
</li>
<li>
<p>Add your users and domains (after reading the rest of this
document well).</p>
</li>
<li>
<p>Change or comment out (#) the example account in '<strong>ctrlaccounts.tab</strong>' by using
a non-trivial username and password.</p>
</li>
<li>
<p>Copy the xmail startup script to your init.d directory
(it's position depends on your distro).
If you've setup XMail to work in a subdirectory other than '<strong>/var/MailRoot</strong>' you
must edit the xmail startup script to customize its boot parameters.</p>
</li>
<li>
<p>Use the '<strong>sysv_inst.sh</strong>' shell script (from root user) to create SysV boot script -
unless your distro has other tools to do this.</p>
</li>
<li>
<p>To start XMail without reboot you can run (from root):
/etc/rc.d/init.d/xmail start
otherwise reboot your machine.</p>
</li>
<li>
<p>Setup the file '<strong>smtprelay.tab</strong>' if you want to extend mail relaying to IPs outside
of the internet's private IP blocks (or you want to deny even those - that comes enabled by
default with XMail).</p>
</li>
<li>
<p>Look at [<a href="#ssl_configuration">SSL CONFIGURATION</a>] for information about how to
create the required '<strong>server.key</strong>' and '<strong>server.cert</strong>' files.</p>
</li>
</ol>
<p>For further configuration options, please see the [<a href="#command_line">COMMAND LINE</a>] section.</p>
<p>[<a href="#configuration">configuration</a>] [<a href="#__index__">top</a>]</p>
<p>
</p>
<h2><a name="nt_win2k_xp">NT/Win2K/XP</a></h2>
<ol>
<li>
<p>Build XMail.</p>
</li>
<li>
<p>Copy the supplied MailRoot directory where you want it to reside (normally '<strong>C:\MailRoot</strong>').</p>
</li>
<li>
<p>Setup the MailRoot directory (and subdirectories and file) permissions to allow access
only to System and Administrators. Doing this you can run XMail as a console startup only
if you're Administrator (service startup as System).</p>
</li>
<li>
<p>Copy XMail executables to '<strong>C:\MailRoot\bin</strong>'. Also copy the OpenSSL DLLs located in
"win32ssl\dll" to '<strong>C:\MailRoot\bin</strong>'.</p>
</li>
<li>
<p>With '<strong>regedit</strong>', create '<strong>GNU</strong>' key inside '<strong>HKEY_LOCAL_MACHINE\SOFTWARE\</strong>' and then '<strong>XMail</strong>'
key inside '<strong>HKEY_LOCAL_MACHINE\SOFTWARE\GNU</strong>'.</p>
</li>
<li>
<p>Create a new string value named '<strong>MAIL_ROOT</strong>' inside '<strong>HKEY_LOCAL_MACHINE\SOFTWARE\GNU\XMail\</strong>'
with value '<strong>C:\MailRoot</strong>'.</p>
</li>
<li>
<p>Optionally create a new string value named '<strong>MAIL_CMD_LINE</strong>' inside
'<strong>HKEY_LOCAL_MACHINE\SOFTWARE\GNU\XMail\</strong>' to store your command line options
(read well the rest of this document).</p>
</li>
<li>
<p>Open an NT console (command prompt).</p>
</li>
<li>
<p>Go inside '<strong>C:\MailRoot\bin</strong>' and run:
XMail --install
for a manual startup, or:
XMail --install-auto
for an automatic startup.</p>
</li>
<li>
<p>If you have other services that provide the same functionality as XMail, that is
SMTP, POP3, or Finger servers, you must stop these services.</p>
</li>
<li>
<p>Setup the '<strong>SERVER.TAB</strong>' configuration option after reading the rest of this document
well.</p>
</li>
<li>
<p>Add your users and domains (after reading to the rest of this document well).</p>
</li>
<li>
<p>Setup file permissions of the '<strong>C:\MailRoot</strong>' directory to grant access only to
'<strong>SYSTEM</strong>' and '<strong>Domain Admins</strong>'.</p>
</li>
<li>
<p>Change or comment out (#) the example account in ctrlaccounts.tab by using a
non-trivial username and password.</p>
</li>
<li>
<p>To start XMail without reboot you can go to:
ControlPanel -> Services -> XMail server
and start the service, otherwise reboot your machine.</p>
</li>
<li>
<p>Setup the file '<strong>smtprelay.tab</strong>' if you want to extend mail relaying to IPs outside
of the internet's private IP blocks (or you want to deny even those - that comes enabled by
default with XMail).</p>
</li>
<li>
<p>Look at [<a href="#ssl_configuration">SSL CONFIGURATION</a>] for information about how to
create the required '<strong>server.key</strong>' and '<strong>server.cert</strong>' files.</p>
</li>
</ol>
<p>For further configuration options, please see the [<a href="#command_line">COMMAND LINE</a>] section.</p>
<p>[<a href="#configuration">configuration</a>] [<a href="#__index__">top</a>]</p>
<p>
</p>
<h2><a name="environment_variables">Environment variables</a></h2>
<dl>
<dt><strong><a name="mail_root" class="item">[MAIL_ROOT]</a></strong></dt>
<dd>
<p>If you want to start XMail as a simple test you must setup an environment variable
MAIL_ROOT that points to the XMail Server root directory.</p>
<p>Linux/etc.:</p>
<pre>
export MAIL_ROOT=/var/XMailRoot</pre>
<p>Windows:</p>
<pre>
set MAIL_ROOT=C:\MailRoot</pre>
</dd>
<dt><strong><a name="mail_cmd_line" class="item">[MAIL_CMD_LINE]</a></strong></dt>
<dd>
<p>Allows the user to specify extra command line parameters (they will be appended to the
ones specified in the command line).</p>
</dd>
<dt><strong><a name="xmail_pid_dir" class="item">[XMAIL_PID_DIR]</a></strong></dt>
<dd>
<p>Allows the user to specify the PID directory (Unix only ports). The specified directory must
NOT have the final slash (/) appended to the path.</p>
</dd>
</dl>
<p>[<a href="#configuration">configuration</a>] [<a href="#__index__">top</a>]</p>
<p>
</p>
<h2><a name="mailroot_structure">MailRoot structure</a></h2>
<p>Mail root directory contain these files:</p>
<pre>
aliases.tab <file>
aliasdomain.tab <file>
domains.tab <file>
dnsroots <file>
extaliases.tab <file>
mailusers.tab <file>
message.id <file>
pop3links.tab <file>
server.tab <file>
server.cert <file>
server.key <file>
smtpgw.tab <file>
smtpfwd.tab <file>
smtprelay.tab <file>
smtpauth.tab <file>
smtpextauth.tab <file>
userdef.tab <file>
ctrlaccounts.tab <file>
spammers.tab <file>
spam-address.tab <file>
pop3.ipmap.tab <file>
smtp.ipmap.tab <file>
ctrl.ipmap.tab <file>
finger.ipmap.tab <file>
filters.in.tab <file>
filters.out.tab <file>
filters.post-rcpt.tab <file>
filters.pre-data.tab <file>
filters.post-data.tab <file>
smtp.ipprop.tab <file>
smtp.hnprop.tab <file></pre>
<p>and these directories:</p>
<pre>
bin <dir>
cmdaliases <dir>
tabindex <dir>
dnscache <dir>
mx <dir>
ns <dir>
custdomains <dir>
filters <dir>
logs <dir>
pop3locks <dir>
pop3linklocks <dir>
pop3links <dir>
spool <dir>
local <dir>
temp <dir>
0 <dir>
0 <dir>
mess <dir>
rsnd <dir>
info <dir>
temp <dir>
slog <dir>
lock <dir>
mprc <dir>
froz <dir>
...
...
userauth <dir>
pop3 <dir>
smtp <dir>
domains <dir>
msgsync <dir></pre>
<p>and for each domain DOMAIN handled a directory (inside <strong>domains</strong>):</p>
<pre>
DOMAIN <dir>
userdef.tab <file>
mailproc.tab <file> [ optional ]</pre>
<p>inside of which reside, for each account ACCOUNT:</p>
<pre>
ACCOUNT <dir>
user.tab <file>
mlusers.tab <file> [ mailing list case ]
mailproc.tab <file> [ optional ]
pop3.ipmap.tab <file> [ optional ]</pre>
<p>and</p>
<pre>
mailbox <dir></pre>
<p>for mailbox structure, while:</p>
<pre>
Maildir <dir>
tmp <dir>
new <dir>
cur <dir></pre>
<p>for Maildir structure. The <strong>msgsync</strong> directory is used to store UIDL lists
for PSYNC accounts that require leaving messages on the server. Inside the <strong>msgsync</strong>
other directories will be created with the name of the remote server, directories that
will store UIDL DB files.</p>
<p>[<a href="#configuration">configuration</a>] [<a href="#__index__">top</a>]</p>
<p>
</p>
<h2><a name="configuration_tables">Configuration tables</a></h2>
<p>TAB ('<strong>something.tab</strong>') files are text files (in the sense meant by the OS in use:
<CR><LF> for NT and <CR> for Linux) with this format:</p>
<pre>
"value1"[TAB]"value2"[TAB]...[NEWLINE]</pre>
<p>The following sections explain each file's structure and use.</p>
<dl>
<dt><strong><a name="aliases_tab" class="item"><a href="#aliases_tab">ALIASES.TAB</a></a></strong></dt>
<dt><strong><a name="aliasdomain_tab" class="item"><a href="#aliasdomain_tab">ALIASDOMAIN.TAB</a></a></strong></dt>
<dt><strong><a name="domains_tab" class="item"><a href="#domains_tab">DOMAINS.TAB</a></a></strong></dt>
<dt><strong><a name="dnsroots" class="item"><a href="#dnsroots">DNSROOTS</a></a></strong></dt>
<dt><strong><a name="extaliases_tab" class="item"><a href="#extaliases_tab">EXTALIASES.TAB</a></a></strong></dt>
<dt><strong><a name="mailusers_tab" class="item"><a href="#mailusers_tab">MAILUSERS.TAB</a></a></strong></dt>
<dt><strong><a name="message_id" class="item"><a href="#message_id">MESSAGE.ID</a></a></strong></dt>
<dt><strong><a name="pop3links_tab" class="item"><a href="#pop3links_tab">POP3LINKS.TAB</a></a></strong></dt>
<dt><strong><a name="server_tab" class="item"><a href="#server_tab">SERVER.TAB</a></a></strong></dt>
<dt><strong><a name="smtpgw_tab" class="item"><a href="#smtpgw_tab">SMTPGW.TAB</a></a></strong></dt>
<dt><strong><a name="smtpfwd_tab" class="item"><a href="#smtpfwd_tab">SMTPFWD.TAB</a></a></strong></dt>
<dt><strong><a name="smtprelay_tab" class="item"><a href="#smtprelay_tab">SMTPRELAY.TAB</a></a></strong></dt>
<dt><strong><a name="smtpauth_tab" class="item"><a href="#smtpauth_tab">SMTPAUTH.TAB</a></a></strong></dt>
<dt><strong><a name="smtpextauth_tab" class="item"><a href="#smtpextauth_tab">SMTPEXTAUTH.TAB</a></a></strong></dt>
<dt><strong><a name="userdef_tab" class="item"><a href="#userdef_tab">USERDEF.TAB</a></a></strong></dt>
<dt><strong><a name="ctrlaccounts_tab" class="item"><a href="#ctrlaccounts_tab">CTRLACCOUNTS.TAB</a></a></strong></dt>
<dt><strong><a name="spammers_tab" class="item"><a href="#spammers_tab">SPAMMERS.TAB</a></a></strong></dt>
<dt><strong><a name="spam_address_tab" class="item"><a href="#spam_address_tab">SPAM-ADDRESS.TAB</a></a></strong></dt>
<dt><strong><a name="pop3_ipmap_tab" class="item"><a href="#pop3_ipmap_tab">POP3.IPMAP.TAB</a></a></strong></dt>
<dt><strong><a name="smtp_ipmap_tab" class="item"><a href="#smtp_ipmap_tab">SMTP.IPMAP.TAB</a></a></strong></dt>
<dt><strong><a name="ctrl_ipmap_tab" class="item"><a href="#ctrl_ipmap_tab">CTRL.IPMAP.TAB</a></a></strong></dt>
<dt><strong><a name="finger_ipmap_tab" class="item"><a href="#finger_ipmap_tab">FINGER.IPMAP.TAB</a></a></strong></dt>
<dt><strong><a name="user_tab" class="item"><a href="#user_tab">USER.TAB</a></a></strong></dt>
<dt><strong><a name="mlusers_tab" class="item"><a href="#mlusers_tab">MLUSERS.TAB</a></a></strong></dt>
<dt><strong><a name="mailproc_tab" class="item"><a href="#mailproc_tab">MAILPROC.TAB</a></a></strong></dt>
<dt><strong><a name="smtp_ipprop_tab" class="item"><a href="#smtp_ipprop_tab">SMTP.IPPROP.TAB</a></a></strong></dt>
<dt><strong><a name="smtp_hnprop_tab" class="item"><a href="#smtp_hnprop_tab">SMTP.HNPROP.TAB</a></a></strong></dt>
<dt><strong><a name="filters_in_tab" class="item"><a href="#filters_in_tab">FILTERS.IN.TAB</a></a></strong></dt>
<dt><strong><a name="filters_out_tab" class="item"><a href="#filters_out_tab">FILTERS.OUT.TAB</a></a></strong></dt>
<dt><strong><a name="filters_post_rcpt_tab" class="item"><a href="#filters_post_rcpt_tab">FILTERS.POST-RCPT.TAB</a></a></strong></dt>
<dt><strong><a name="filters_pre_data_tab" class="item"><a href="#filters_pre_data_tab">FILTERS.PRE-DATA.TAB</a></a></strong></dt>
<dt><strong><a name="filters_post_data_tab" class="item"><a href="#filters_post_data_tab">FILTERS.POST-DATA.TAB</a></a></strong></dt>
</dl>
<p>[<a href="#configuration">configuration</a>] [<a href="#__index__">top</a>]</p>
<p>
</p>
<h3><a name="aliases_tab">ALIASES.TAB</a></h3>
<pre>
"domain"[TAB]"alias"[TAB]"realaccount"[NEWLINE]</pre>
<p>Example:</p>
<pre>
"home.bogus" "davidel" "dlibenzi"</pre>
<p>define 'davidel' as alias for 'dlibenzi' in 'home.bogus' domain.</p>
<pre>
"home.bogus" "foo*bog" "[email protected]"</pre>
<p>define an alias for all users whose name starts with '<strong>foo</strong>' and ends with '<strong>bog</strong>'
that points to the locally handled account '<strong>homer@internal-domain.org</strong>'.</p>
<pre>
"home.bogus" "??trips" "travels"</pre>
<p>define an alias for all users whose names start with any two chars and end with '<strong>trips</strong>'.
You can even have wildcards in the domain field, as:</p>
<pre>
"*" "postmaster" "[email protected]"</pre>
<p>You '<strong>CANNOT</strong>' edit this file while XMail is running because it is an indexed file.</p>
<p>[<a href="#configuration_tables">table index</a>] [<a href="#configuration">configuration</a>] [<a href="#__index__">top</a>]</p>
<p>
</p>
<h3><a name="aliasdomain_tab">ALIASDOMAIN.TAB</a></h3>
<pre>
"aliasdomain"[TAB]"realdomain"[NEWLINE]</pre>
<p>where '<strong>aliasdomain</strong>' can use wildcards:</p>
<pre>
"simpson.org" "simpson.com"
"*.homer.net" "homer.net"</pre>
<p>The first line defines '<strong>simpson.org</strong>' as an alias of '<strong>simpson.com</strong>' while the second remaps
all subdomains of '<strong>homer.net</strong>' to '<strong>homer.net</strong>'.</p>
<p>You '<strong>CANNOT</strong>' edit this file while XMail is running because it is an indexed file.</p>
<p>[<a href="#configuration_tables">table index</a>] [<a href="#configuration">configuration</a>] [<a href="#__index__">top</a>]</p>
<p>
</p>
<h3><a name="domains_tab">DOMAINS.TAB</a></h3>
<pre>
"domain"[NEWLINE]</pre>
<p>defines domains handled by the server.</p>
<p>[<a href="#configuration_tables">table index</a>] [<a href="#configuration">configuration</a>] [<a href="#__index__">top</a>]</p>
<p>
</p>
<h3><a name="dnsroots">DNSROOTS</a></h3>
<pre>
host</pre>
<p>This is a file that lists a root name server in each line (this is not a TAB file).
This can be created from a query via nslookup for type=ns and host = '.'.</p>
<p>[<a href="#configuration_tables">table index</a>] [<a href="#configuration">configuration</a>] [<a href="#__index__">top</a>]</p>
<p>
</p>
<h3><a name="extaliases_tab">EXTALIASES.TAB</a></h3>
<pre>
"external-domain"[TAB]"external-account"[TAB]"local-domain"[TAB]"local-user"[NEWLINE]</pre>
<p>Example:</p>
<pre>
"xmailserver.org" "dlibenzi" "home.bogus" "dlibenzi"</pre>
<p>This file is used in configurations in which the server does not run directly on Internet
(like my case) but acts as internal mail exchanger and external mail gateway.
This file defines 'Return-Path: <...>' mapping for internal mail delivery.
If you are using an Mail client like Outlook, Eudora, KMail ... you have to configure
your email address with the external account say 'dlibenzi@xmailserver.org'.
When you post an internal message to 'foo@home.bogus' the mail client puts your external
email address ('dlibenzi@xmailserver.org') in the 'MAIL FROM: <...>' SMTP request.
Now if the user 'foo' replies to this message, it replies to 'dlibenzi@xmailserver.org',
and then is sent to the external mail server.
With the entry above in '<strong>EXTALIASES.TAB</strong>' file the 'Return-Path: <...>' field is filled
with 'dlibenzi@home.bogus' that leads to an internal mail reply.</p>
<p>You '<strong>CANNOT</strong>' edit this file while XMail is running because it is an indexed file.</p>
<p>[<a href="#configuration_tables">table index</a>] [<a href="#configuration">configuration</a>] [<a href="#__index__">top</a>]</p>
<p>
</p>
<h3><a name="mailusers_tab">MAILUSERS.TAB</a></h3>
<pre>
"domain"[TAB]"account"[TAB]"enc-passwd"[TAB]"account-id"[TAB]"account-dir"[TAB]=>
"account-type"[NEWLINE]</pre>
<p>(remember, enter as one line.) Example:</p>
<pre>
"home.bogus" "dlibenzi" "XYZ..." 1 "dlibenzi" "U"</pre>
<p>defines an account 'dlibenzi' in domain 'home.bogus' with the encrypted password 'XYZ...',
user id '1' and mail directory 'dlibenzi' inside '<strong>$MAIL_ROOT/domains/home.bogus</strong>'.
To allow multiple domain handling the POP3 client must use the entire email address
for the POP3 user account; for example, if a user has email user@domain it must supply:</p>
<pre>
user@domain</pre>
<p>as POP3 account login.</p>
<p>The directory 'account-dir' '<strong>must</strong>' case match with the field 'account-dir' of this file.
Note that user id '<strong>must</strong>' be unique for all users (duplicate user ids are not allowed).
The user id 0 is reserved by XMail and cannot be used.</p>
<p>The last field 'U' is the account type:</p>
<pre>
"U" = User account
"M" = Mailing list account</pre>
<p>The encrypted password is generated by '<strong>XMCrypt</strong>' whose source is '<strong>XMCrypt.cpp</strong>'.
Even if external authentication is used (see <a href="#external_authentication">External Authentication</a>) this
file '<strong>must</strong>' contain an entry for each user handled by XMail.</p>
<p>You '<strong>CANNOT</strong>' edit this file while XMail is running because it is an indexed file.</p>
<p>[<a href="#configuration_tables">table index</a>] [<a href="#configuration">configuration</a>] [<a href="#__index__">top</a>]</p>
<p>
</p>
<h3><a name="message_id">MESSAGE.ID</a></h3>
<p>A file storing a sequential message number.
Set it at 1 when you install the server and leave it be handled by the software.</p>
<p>[<a href="#configuration_tables">table index</a>] [<a href="#configuration">configuration</a>] [<a href="#__index__">top</a>]</p>
<p>
</p>
<h3><a name="pop3links_tab">POP3LINKS.TAB</a></h3>
<pre>
"local-domain"[TAB]"local-account"[TAB]"external-domain"[TAB]=>
"external-account"[TAB]"external-crypted-password"[TAB]"authtype"[NEWLINE]</pre>
<p>(remember, enter as one line) where:</p>
<p>'<strong>authtype</strong>' = Comma-separated list of options:</p>
<dl>
<dt><strong><a name="clr" class="item">CLR</a></strong></dt>
<dd>
<p>Use clear-text USER/PASS authentication</p>
</dd>
<dt><strong><a name="apop" class="item">APOP</a></strong></dt>
<dd>
<p>Use POP3 APOP authentication (that does not send clear-text passwords over the wire).
Fall back to '<strong>CLR</strong>' if '<strong>APOP</strong>' is not supported</p>
</dd>
<dt><strong><a name="fapop" class="item">FAPOP</a></strong></dt>
<dd>
<p>Use POP3 APOP authentication (that does not send clear-text passwords over the wire).</p>
</dd>
<dt><strong><a name="stls" class="item">STLS</a></strong></dt>
<dd>
<p>Establish an SSL link with the server by issuing a POP3 STLS command.
Continue with the non-encrypted link if STLS is not supported</p>
</dd>
<dt><strong><a name="fstls" class="item">FSTLS</a></strong></dt>
<dd>
<p>Establish an SSL link with the server by issuing a POP3 STLS command.</p>
</dd>
<dt><strong><a name="pop3s" class="item">POP3S</a></strong></dt>
<dd>
<p>Establish a full POP3S connection with the remote server.</p>
</dd>
<dt><strong><a name="leave" class="item">Leave</a></strong></dt>
<dd>
<p>Leave messages on the server, and download only the new ones. In order for this
functionality to work, the remote POP3 server must support the UIDL command.</p>
</dd>
<dt><strong><a name="outbind" class="item">OutBind</a></strong></dt>
<dd>
<p>Sets the IP address of the network interface that should be used when connecting
to the remote host. This configuration should be used carefully, because XMail
will fail if the selected IP of the interface does not have a route to the remote
host using such IP.</p>
</dd>
</dl>
<p>Examples:</p>
<pre>
"home.bogus" "dlibenzi" "xmailserver.org" "dlibenzi" "XYZ..."=>
"APOP"</pre>
<p>This entry is used to synchronize the external account 'dlibenzi@xmailserver.org' with encrypted
password 'XYZ...' with the local account 'dlibenzi@home.bogus' using '<strong>APOP</strong>' authentication.