106 lines
3.6 KiB
Plaintext
106 lines
3.6 KiB
Plaintext
E-MailRelay Readme
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==================
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Abstract
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--------
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E-MailRelay is a simple SMTP proxy and store-and-forward message transfer agent
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(MTA). When running as a proxy all e-mail messages can be passed through a
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user-defined program, such as a spam filter, which can drop, re-address or edit
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messages as they pass through. When running as a store-and-forward MTA incoming
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messages are stored in a local spool directory, and then forwarded to the next
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SMTP server on request.
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Because of its functional simplicity E-MailRelay is easy to configure, typically
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only requiring the address of the target SMTP server to be put on the command
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line.
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C++ source code is available for Linux, FreeBSD, MacOS X etc, and Windows.
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Distribution is under the GNU General Public License.
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Quick start
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-----------
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To run the program as a proxy use the "--as-proxy" command-line switch, followed by the
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address of the target SMTP server. If you want to edit or filter e-mail as it passes
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through the proxy then specify your pre-processor program with the "--filter" switch.
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You can optionally change the listening port number using "--port" and the
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spool directory using "--spool-dir".
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For example, to start up a local proxy which passes messages to some "addsig" script
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and then forwards them to an MTA running on "smarthost", use a command like this:
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emailrelay --as-proxy smarthost:smtp --filter $HOME/bin/addsig --spool-dir $HOME/tmp
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To use E-MailRelay as a store-and-forward MTA use the "--as-server" switch
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to start the storage daemon in the background. And then trigger delivery of
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spooled messages by running emailrelay with the "--as-client" switch, followed
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by the address of the target SMTP server.
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For example, to start a storage daemon listening on port 10025 use a command
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like this:
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emailrelay --as-server --port 10025 --spool-dir $HOME/tmp
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And then to forward the spooled mail to "smarthost" run somthing like this:
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emailrelay --as-client smarthost:smtp --spool-dir $HOME/tmp
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By default E-MailRelay will reject connections from remote machines. To
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allow connections from anywhere use the "--remote-clients" switch.
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For more information on the command-line options refer to the reference guide
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or run:
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emailrelay --help --verbose
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Documentation
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-------------
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The following documentation is provided:
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* README -- this document
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* COPYING -- the GNU General Public License
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* INSTALL -- build & install instructions (including the generic GNU text)
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* AUTHORS -- authors, credits and additional copyrights
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* copyright -- main copyright and GPL reference
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* userguide.txt -- user guide
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* reference.txt -- reference document
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* ChangeLog -- change log for releases
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Source code documentation will be generated when building from source if
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"doxygen" is available.
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Configurations
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--------------
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The code was originally developed on SuSE Linux 7.1 using:
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* linux 2.4.10
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* gcc 2.95.3
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* glibc 2.2.4 (libc.so.6)
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* gnu make 3.79.1
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* autoconf 2.52
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and ported to Windows 98 using:
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* MSVC 6.0
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Recent releases were developed on SuSE Linux 8.0 and
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RedHat Linux 8.0 using:
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* gcc 2.95.3 and gcc 3.2
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* autoconf 2.53
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The code has also been built successfully on:
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* MacOS X
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* FreeBSD on Intel hardware
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* Linux on Alpha hardware (Debian 2.2)
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* Linux on Sparc hardware
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* Linux on RS6000 PPC hardware
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* Solaris 8 using gcc on Sparc hardware
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* Solaris 8 using WorkShop 5.0
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* Linux using intel c++ 6.0
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* Windows NT 4.0 using MSVC 6.0
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* Windows NT 4.0 using Cygwin (DLL 1.3.22) and gcc 3.2
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* Windows NT 4.0 using MinGW 2.0.0 and gcc 3.2
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Feedback
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--------
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Please feel free to e-mail the author at
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"mailto:graeme_walker@users.sourceforge.net".
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